diff --git a/claims/authoritarianism.md b/claims/authoritarianism.md
index 8a21cda..0205c6c 100644
--- a/claims/authoritarianism.md
+++ b/claims/authoritarianism.md
@@ -1,6 +1,16 @@
 # Bitcoin is a means to counter authoritarian regimes
 
 ## References
+
+* Bogost, Ian. 2017. ‘Cryptocurrency Might Be a Path to Authoritarianism’. The Atlantic 30.
+* Taleb, Nassim Nicholas. 2021. ‘Bitcoin, Currencies, and Fragility’. ArXiv:2106.14204 [Physics, q-Fin], July. http://arxiv.org/abs/2106.14204.
+* Krugman, Paul. 2022. ‘The Strange Alliance of Crypto and MAGA Believers’. The New York Times, 11 January 2022, sec. Opinion. https://www.nytimes.com/2022/01/10/opinion/crypto-cryptocurrency-money-conspiracy.html.
+* Xie, Rain. 2019. ‘Why China Had to Ban Cryptocurrency but the U.S. Did Not: A Comparative Analysis of Regulations on Crypto-Markets between the U.S. and China’. Wash. U. Global Stud. L. Rev. 18 (2): 457–89. https://openscholarship.wustl.edu/cgi/viewcontent.cgi?article=1684&context=law_globalstudies.
+* Wang, Gangjin, Yanping Tang, Chi Xie, and Shou Chen. 2019. ‘Is Bitcoin a Safe Haven or a Hedging Asset? Evidence from China’. Journal of Management Science and Engineering 4 (3): 173–88. https://doi.org/10.1016/j.jmse.2019.09.001.
+* Ottenhof, Luke. 2021. ‘Crypto-Colonialists Use the Most Vulnerable People in the World as Guinea Pigs’. VICE Media.
+
+## References
+
 * [@bogost_cryptocurrency_2017]
 * [@gerard_salvador_nodate]
 * [@analytica_salvador_2021]
diff --git a/claims/web3-decentralized.md b/claims/web3-decentralized.md
index e94c955..ea29549 100644
--- a/claims/web3-decentralized.md
+++ b/claims/web3-decentralized.md
@@ -1,7 +1,10 @@
 # Crypto is not decentralized
 
 ## References
+1. Walch, Angela. 2019. ‘Deconstructing ‘Decentralization’: Exploring the Core Claim of Crypto Systems’. C. Brummer (Ed.), Crypto Assets: Legal and Monetary Perspectives, 1–36. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3326244.
 1. Allen, Hilary J. 2022. ‘DeFi: Shadow Banking 2.0?’ William & Mary Law Review, Forthcoming.
+1. Soatok. 2021. ‘Against Web3 and Faux-Decentralization’. Dhole Moments. 19 October 2021. https://soatok.blog/2021/10/19/against-web3-and-faux-decentralization/.
+1. Zhang, Zhexi. 2019. ‘The Aesthetics of Decentralization’. PhD Thesis, Massachusetts Institute of Technology. https://dspace.mit.edu/handle/1721.1/123614.
 1. Aramonte, Sirio, Wenqian Huang, and Andreas Schrimpf. 2021. ‘DeFi Risks and the Decentralisation Illusion’, 16.
 1. Arnosti, Nick, and S Matthew Weinberg. 2022. ‘Bitcoin: A Natural Oligopoly’. Management Science.
 1. Azouvi, Sarah. 2021. ‘Levels of Decentralization and Trust in Cryptocurrencies: Consensus, Governance and Applications’. PhD Thesis, University College London. https://discovery.ucl.ac.uk/id/eprint/10139069/.
@@ -17,16 +20,4 @@
 1. Rocas-Royo, Marc. 2021. ‘The Blockchain That Was Not: The Case of Four Cooperative Agroecological Supermarkets’. Frontiers in Blockchain 4 (April): 1–10. https://doi.org/10.3389/fbloc.2021.624810.
 1. Sai, Ashish Rajendra. 2021. ‘Towards a Holistic Assessment of Centralization in Distributed Ledgers’. https://ulir.ul.ie/handle/10344/10766.
 1. Sai, Ashish Rajendra, Jim Buckley, Brian Fitzgerald, and Andrew Le Gear. 2021. ‘Taxonomy of Centralization in Public Blockchain Systems: A Systematic Literature Review’. Information Processing and Management 58 (4): 102584. https://doi.org/10.1016/j.ipm.2021.102584.
-1. Schneider, Nathan. 2019. ‘Decentralization: An Incomplete Ambition’. Journal of Cultural Economy. https://doi.org/10.1080/17530350.2019.1589553.
-1. Walch, Angela. 2019. ‘Deconstructing ‘Decentralization’: Exploring the Core Claim of Crypto Systems’. C. Brummer (Ed.), Crypto Assets: Legal and Monetary Perspectives, 1–36. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3326244.
-1. Zhang, Zhexi. 2019. ‘The Aesthetics of Decentralization’. PhD Thesis, Massachusetts Institute of Technology. https://dspace.mit.edu/handle/1721.1/123614.
-1. Soatok. 2021. ‘Against Web3 and Faux-Decentralization’. Dhole Moments. 19 October 2021. https://soatok.blog/2021/10/19/against-web3-and-faux-decentralization/.
-
-
-## References
-* [@walch_deconstructing_2019]
-* [@sun_centralized_2021]
-* [@diehl_decentralized_2021]
-* [@schneider_decentralization_2019]
-* [@zhang_aesthetics_2019]
-* [@soatok_against_2021]
\ No newline at end of file
+1. Schneider, Nathan. 2019. ‘Decentralization: An Incomplete Ambition’. Journal of Cultural Economy. https://doi.org/10.1080/17530350.2019.1589553.
\ No newline at end of file
diff --git a/concepts/dollar.md b/concepts/dollar.md
index dd700b2..3b0c1e5 100644
--- a/concepts/dollar.md
+++ b/concepts/dollar.md
@@ -1,9 +1,13 @@
 # US Dollar
-The US dollar is the currency of the United States and acts as a [reserve currency](reserve-currency.md) for international commerce.
+The US dollar is the currency of the United States and acts as a [reserve currency](reserve-currency.md) for international commerce. The dollar is the canonical exemplar of *fiat money*. While fiat money has no backing, its efficacy as a currency is measured in terms of its monetary velocity and the amount of bank assets and private debt that is denominated in the currency. This is effectually a measure of its success for a currency's core purpose—to provide a stable and reliable means of exchange as a social-financial technology for enabling economic productivity. The financial historian Adam Tooze writes of the dollar:
+
+> Fiat money is backed by "nothing" other than the trifling matter of tens of trillions of dollars in private credit, the rule of law and the power of the state, itself inserted into a state system. In other words, the entire structure of global macrofinance”
 
 ## Properties
 The dollar is a [currency](currency.md).
 
+The dollar is issued by a [central bank](central-banks.md).
+
 The dollar is not a [speculative](speculation.md) investment. 
 
 The dollar is [inflationary](inflationary.md).
@@ -14,12 +18,13 @@ The dollar has no [use value](use-value.md).
 
 The dollar has no [income-cashflows](income-cashflows.md).
 
-The dollar has a [present-value](present-value.md) of zero.
+The dollar has a [present value](present-value.md) of zero.
 
-The dollar has a [terminal-value](terminal-value.md) of zero.
+The dollar has a [terminal value](terminal-value.md) of zero.
 
-The dollar is a [non-productive](productive-asset.md) investment.
+The dollar is a [non-productive](productive-asset.md) asset.
 
 The dollar is not a [security](security.md).
 
-The dollar is issued by a [central banks](central-banks.md).
\ No newline at end of file
+## References
+* Tooze, A (2021), “Chartbook newsletter #15: Talking and reading about Bitcoin”, accessed online on 15 November 2021 : https://adamtooze.substack.com/p/chartbook-newsletter-15.
\ No newline at end of file
diff --git a/concepts/nft.md b/concepts/nft.md
index ede47f2..011f806 100644
--- a/concepts/nft.md
+++ b/concepts/nft.md
@@ -1,14 +1,19 @@
 # Non Fungible Token
-
 A type of [smart contracts](smart-contracts.md) that associates a tradable [crypto asset](cryptoasset.md) with a unique piece of data, often a url to hosted image representing some abstract or perceived notion of ownership in [art](art.md) or [sign value](sign-value.md). Since the tokens have "unique" data associated with the token it is non-fungible unlike other crypto assets which aspire to be a fungible [private money](private-money.md).
 
+NFTs at their most basic conceptual core are a hyperlink or URL that is itself sold as a tradeable asset where the connection between the concepts of the URL and the [ficticious commodity](ficticious-commodity.md) is generated by the [Tinkerbell effect](tinkerbell-effect.md).
+
+NFTs have been critizied as having a payout structure similar to a [pyramid scheme](pyramid-scheme.md) or [multilevel marketing scheme](mlm.md).
+
+NFTs have been critizied as being a [bubble](bubble.md).
+
+NFTs have no [use value](use-value.md).
+
 NFTs have no [fundamental value](fundamental-value.md).
 
 NFTs are a [speculative asset](speculation.md).
 
-NFTs have no [use value](use-value.md).
-
-NFTs have been critizied as having a payout structure similar to a [pyramid scheme](pyramid-scheme.md) or [multilevel marketing scheme](mlm.md).
+NFTs have no [income cashflows](income-cashflows.md).
 
 ## Duplication
 #todo 
@@ -22,7 +27,6 @@ NFTs have been critizied as having a payout structure similar to a [pyramid sche
 ## Link Rot
 NFTs have been critized as having no relationship to the underlying artwork and being subject to link-rot. 
 
-See: https://thenftbay.org/
 
 ## Redefinition of Ownership
 #todo 
@@ -31,8 +35,32 @@ See: https://thenftbay.org/
 #todo 
 
 ## References
+* Olson, Dan. 2022a. Line Goes Up – The Problem With NFTs. https://www.youtube.com/watch?v=YQ_xWvX1n9g.
+* *‘NFTs, Cryptocurrencies and Web3 Are Multilevel Marketing Schemes for a New Generation - WSJ’. n.d. Accessed 14 March 2022. https://www.wsj.com/articles/nfts-cryptocurrencies-and-web3-are-multilevel-marketing-schemes-for-a-new-generation-11645246824.
+* Low, Kelvin F K. 2021. ‘The Emperor’s New Art: Cryptomania, Art & Property’. Art & Property. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3978241.
+* Aharon, David Y., and Ender Demir. 2021. ‘NFTs and Asset Class Spillovers: Lessons from the Period around the COVID-19 Pandemic’. Finance Research Letters, 102515. https://doi.org/10.1016/j.frl.2021.102515.
+* Ante, Lennart. 2021. ‘Non-Fungible Token (NFT) Markets on the Ethereum Blockchain: Temporal Development, Cointegration and Interrelations’. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.3904683.
+* Bodó, Balázs, Alexandra Giannopoulou, João Quintais, and Péter Mezei. 2022. ‘The Rise of NFTs: These Aren’t the Droids You’re Looking For’. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4000423.
+* Çağlayan Aksoy, Pınar, and Zehra Özkan Üner. 2021. ‘NFTs and Copyright: Challenges and Opportunities’. Journal of Intellectual Property Law & Practice 16 (10): 1115–26. https://doi.org/10.1093/jiplp/jpab104.
+* Casale-Brunet, S., P. Ribeca, P. Doyle, and M. Mattavelli. 2021. ‘Networks of Ethereum Non-Fungible Tokens: A Graph-Based Analysis of the ERC-721 Ecosystem’. ArXiv Preprint ArXiv:2110.12545. http://arxiv.org/abs/2110.12545.
+* Diehl, Stephen. 2021. ‘The Tinkerbell Griftopia’. 19 November 2021. https://www.stephendiehl.com/blog/tinkerbell.html.
+* Dowling, Michael. 2021. ‘Fertile LAND: Pricing Non-Fungible Tokens’. Finance Research Letters, 102096. https://doi.org/10.1016/j.frl.2021.102096.
+* Fairfield, Joshua. 2021. ‘Tokenized: The Law of Non-Fungible Tokens and Unique Digital Property’. Indiana Law Journal, 1–99. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3821102.
+* Frye, Brian L. 2021. ‘After Copyright: Pwning NFTs in a Clout Economy’. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.3971240.
+* *———. n.d. ‘How to Sell NFTs Without Really Trying’. Harvard Journal of Sports and Entertainment Law, Forthcoming. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3930430.
+* Gibson, Johanna. 2021. ‘The Thousand-and-Second Tale of NFTS, as Foretold by Edgar Allan Poe’. Queen Mary Journal of Intellectual Property 11 (3): 249–69. https://doi.org/10.4337/qmjip.2021.03.00.
+* Guadamuz, Andres. 2021. ‘The Treachery of Images: Non-Fungible Tokens and Copyright’. SSRN Electronic Journal 16 (12): 1367–85. https://doi.org/10.2139/ssrn.3905452.
+* Kim, Soyeon. 2020. ‘Fractional Ownership, Democratization, and Bubble Formation - The Impact of Blockchain Enabled Asset Tokenization’. 26th Americas Conference on Information Systems, AMCIS 2020, 0–5. https://aisel.aisnet.org/amcis2020/adv_info_systems_research/adv_info_systems_research/19/.
+* Kong, De-Rong, and Tse-Chun Lin. 2021. ‘Alternative Investments in the Fintech Era: The Risk and Return of Non-Fungible Token (NFT)’. SSRN Electronic Journal. https://doi.org/10.2139/ssrn.3914085.
+* Mackenzie, Simon, and Diāna Bērziņa. 2021. ‘NFTs: Digital Things and Their Criminal Lives’. Crime, Media, Culture, 17416590211039796. https://doi.org/10.1177/17416590211039797.
+* Mazur, Mieszko. 2021. Non-Fungible Tokens (NFT). The Analysis of Risk and Return. SSRN Electronic Journal. October. https://doi.org/10.2139/ssrn.3953535.
+* Nadini, Matthieu, Laura Alessandretti, Flavio Di Giacinto, Mauro Martino, Luca Maria Aiello, and Andrea Baronchelli. 2021. ‘Mapping the NFT Revolution: Market Trends, Trade Networks, and Visual Features’. Scientific Reports 11 (1). https://doi.org/10.1038/s41598-021-00053-8.
+* Solimano, Andrés. 2021. ‘The Evolution of Contemporary Arts Markets’. https://doi.org/10.4324/9781003215127.
+* Tonelli, Emily. 2022. ‘Internet Guru Tim O’Reilly: Crypto and NFTs Are “Pretty Serious Speculative Bubble”’. Decrypt. 10 February 2022. https://decrypt.co/92676/internet-guru-tim-oreilly-crypto-nfts-serious-speculative-bubble.
+* Whitaker, Amy. 2021. Economics of Visual Art: Market Practice and Market Resistance. Cambridge University Press. https://doi.org/10.1017/9781108649919.
 
+## External References
+
+* [Web3 is Going Great](https://web3isgoinggreat.com)
 * [Line Goes Up - The Problem with NFTs](https://www.youtube.com/watch?v=YQ_xWvX1n9g)
-* [@bodo_rise_2022]
-* [@diehl_tinkerbell_2021]
-* [@olson_line_2022]
\ No newline at end of file
+* [The NFTBay](https://thenftbay.org)
\ No newline at end of file
diff --git a/concepts/ponzi-scheme.md b/concepts/ponzi-scheme.md
index 8344929..70c4776 100644
--- a/concepts/ponzi-scheme.md
+++ b/concepts/ponzi-scheme.md
@@ -2,23 +2,25 @@
 A type of investment fraud in which old investors are paid out from an influx of new investors. These type of schemes are ultimately unsustainable and are destined to collapse when outflows exceed inflows or the operators abscond with the funds. There are five distinguishing characteristics of a Ponzi scheme:
 
 1. Investors put money into the scheme because they expect profits
-1. Investors expectation are temporarily sustained by such profits being paid to those who choose to cash out.
-1. However there is no external source of revenue for those payoffs.
-1. Instead the payoffs come entirely from operators of scheme bringing in new investment money.
-1. And the operators take away (i.e. abscond) with a a large percentage of the money.
+2. Investors expectation are temporarily sustained by such profits being paid to those who choose to cash out.
+3. However there is no external source of revenue for those payoffs.
+4. Instead the payoffs come entirely from operators of scheme bringing in new investment money.
+5. And the operators run away (i.e. abscond) with a a large percentage of the funds.
 
-The mechanism by which new investors are brought in, and by which the operators remove investors from the scheme may vary between schemes. Ponzi schemes may present as direct investment vehicles such as funds like Bernie Madoff's fund Madoff Investment Securities LLC. Ponzi schemes may also present as a [market maker](market-maker.md) where investors are sold [zero income](income-cashflows.md) [greater fool](greater-fool-theory.md) investments and the operators abscond with money through [market manipulation](market-manipulation.md).
+The mechanism by which new investors are brought in, and by which the operators remove investors from the scheme may vary between schemes. Ponzi schemes may present as direct investment vehicles such as funds like Bernie Madoff's fund Madoff Investment Securities LLC. Ponzi schemes may also present as a fraudulent [market maker](market-maker.md) where investors are sold [zero income](income-cashflows.md) [greater fool](greater-fool-theory.md) investments and the operators abscond with money through [market manipulation](market-manipulation.md).
 
-Some participants can make money investing in Ponzi schemes, but the basic fact is that most participants will lose money. Thus Investing in Ponzi schemes has a negative [expected return](expected-return.md).
+Some participants can make money investing in Ponzi schemes, but the basic fact is that most participants will lose money. Thus Investing in Ponzi schemes has a negative [expected return](expected-return.md) and are [negative sum](../claims/negative-sum.md).
 
 [Crypto assets](cryptoasset.md) are often referred to as market-obscured or self-organizing Ponzi schemes because of their nearly identical payout structure.
 
 ## References
-* Moore, Tyler, Jie Han, and Richard Clayton. 2012. ‘The Postmodern Ponzi Scheme: Empirical Analysis of High-Yield Investment Programs’. In Financial Cryptography and Data Security, edited by Angelos D. Keromytis, 7397:41–56. Lecture Notes in Computer Science. Berlin, Heidelberg: Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-32946-3_4.
-* *‘Bitcoin Pyramid Schemes Wreak Havoc on Brazil’s “New Egypt”’. 2022. AP NEWS. 22 January 2022. https://apnews.com/article/cryptocurrency-technology-business-brazil-bitcoin-2dc801e5e3aa477ce7983d84dc8a64bb.
-* Bartoletti, Massimo, Salvatore Carta, Tiziana Cimoli, and Roberto Saia. 2020. ‘Dissecting Ponzi Schemes on Ethereum: Identification, Analysis, and Impact’. Future Generation Computer Systems 102: 259–77.
-* Krugman, Paul. 2018. ‘Bitcoin Is Basically a Ponzi Scheme’. The Seattle Times 30.
+* Krugman, Paul. 2018. ‘Bitcoin Is Basically a Ponzi Scheme’. The Seattle Times 30. https://www.seattletimes.com/opinion/bitcoin-is-basically-a-ponzi-scheme/.
 * Stolfi, Jorge. n.d. ‘Bitcoin Is a Ponzi’. Accessed 19 March 2022. https://ic.unicamp.br/~stolfi/bitcoin/2020-12-31-bitcoin-ponzi.html.
+* Sohale Andrus Mortazvi. n.d. ‘Cryptocurrency Is a Giant Ponzi Scheme’. Jacobin. Accessed 20 March 2022. https://jacobinmag.com/2022/01/cryptocurrency-scam-blockchain-bitcoin-economy-decentralization.
+* *‘Why Bitcoin Is Worse than a Madoff-Style Ponzi Scheme | Financial Times’. n.d. Accessed 20 March 2022. https://www.ft.com/content/83a14261-598d-4601-87fc-5dde528b33d0.
+* ‘Bitcoin Pyramid Schemes Wreak Havoc on Brazil’s “New Egypt”’. 2022. AP NEWS. 22 January 2022. https://apnews.com/article/cryptocurrency-technology-business-brazil-bitcoin-2dc801e5e3aa477ce7983d84dc8a64bb.
+* Shri T Rabi Sankar. n.d. ‘Cryptocurrencies – An Assessment’. Reserve Bank of India. Accessed 2 March 2022. https://rbi.org.in/Scripts/BS_SpeechesView.aspx?Id=1196.
+* Bartoletti, Massimo, Salvatore Carta, Tiziana Cimoli, and Roberto Saia. 2020. ‘Dissecting Ponzi Schemes on Ethereum: Identification, Analysis, and Impact’. Future Generation Computer Systems 102: 259–77.
 * Corradi, Fiammetta, and Philipp Höfner. 2018. ‘The Disenchantment of Bitcoin: Unveiling the Myth of a Digital Currency’. International Review of Sociology 28 (1): 193–207. https://doi.org/10.1080/03906701.2018.1430067.
-* Jarvis, Christopher J. 2000. ‘The Rise and Fall of Albania’s Pyramid Schemes’. Finance & Development 37 (001).
+* Moore, Tyler, Jie Han, and Richard Clayton. 2012. ‘The Postmodern Ponzi Scheme: Empirical Analysis of High-Yield Investment Programs’. In Financial Cryptography and Data Security, edited by Angelos D. Keromytis, 7397:41–56. Lecture Notes in Computer Science. Berlin, Heidelberg: Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-32946-3_4.
 * [Investor.gov Ponzi Scheme](https://www.investor.gov/protect-your-investments/fraud/types-fraud/ponzi-scheme)
\ No newline at end of file
diff --git a/concepts/private-money.md b/concepts/private-money.md
index 1bddf5b..31f45a7 100644
--- a/concepts/private-money.md
+++ b/concepts/private-money.md
@@ -7,7 +7,7 @@ Many [crypto assets](cryptoasset.md) allege to be a form of transnational privat
 
 ## American Wildcat Banks
 
-The America financial system, before the Civil War, had a large network of independent banks which all issued their own notes as a form of private money. The system was not effective as rife with fraud and [systemic-risk](systemic-risk.md). The bank note was nationalized by The National Banking Acts of 1863.
+The America financial system, before the Civil War, had a large network of independent banks which all issued their own notes as a form of private money. This was known as the *Wildcat banking era* or the *Free banking era*. The system was not effective as rife with fraud and [counterparty risk](counterparty-risk.md) and was eventually phased out because of its problems. The dollar bank note was nationalized by The National Banking Acts of 1863.
 
 https://www.npr.org/sections/money/2012/12/07/166747693/episode-421-the-birth-of-the-dollar-bill
 
diff --git a/concepts/pyramid-scheme.md b/concepts/pyramid-scheme.md
index 29fba06..1c90a9d 100644
--- a/concepts/pyramid-scheme.md
+++ b/concepts/pyramid-scheme.md
@@ -4,4 +4,9 @@ A pyramid scheme is a fraudulent investment based on recruiting an ever-increasi
 See [multilevel marketing scheme](mlm.md).
 
 ## References
+* *‘Bitcoin Pyramid Schemes Wreak Havoc on Brazil’s “New Egypt”’. 2022. AP NEWS. 22 January 2022. https://apnews.com/article/cryptocurrency-technology-business-brazil-bitcoin-2dc801e5e3aa477ce7983d84dc8a64bb.
+* Jarvis, Christopher J. 2000. ‘The Rise and Fall of Albania’s Pyramid Schemes’. Finance & Development 37 (001).
+* Papillouda, Christian, and Aldo Haeslerb. 2014. ‘The Veil of Economy: Electronic Money and the Pyramidal Structure of Societies’. Distinktion 15 (1): 54–68. https://doi.org/10.1080/1600910X.2014.882853.
+* Stivers, A. 2019. ‘The Alchemy of a Pyramid: Transmutating Business Opportunity Into a Negative Sum Wealth Transfer’. http://ssrn.com/paper=3497682.
+* Wigglesworth, Robin. 2021. ‘Albanian Lessons for Regulators Nervously Eyeing the Crypto World’. Financial Times, 5 July 2021. https://www.ft.com/content/810367e5-e0b1-4221-b303-f3012a177437.
 * [Invesator.gov Pyramid Scheme](https://www.investor.gov/protect-your-investments/fraud/types-fraud/pyramid-schemes)
\ No newline at end of file
diff --git a/concepts/speculation.md b/concepts/speculation.md
index 515b97c..1091f70 100644
--- a/concepts/speculation.md
+++ b/concepts/speculation.md
@@ -1,4 +1,17 @@
 # Speculation
 Speculation is the taking of a position on an asset with the hope that it will become more valuable on a short time horizon. Speculation plays a part in [price formation](price-formation.md).
 
-Some speculators may care little for the [fundamental value](fundamental-value.md) of the asset and instead focus purely on short-term price movements, public sentiment and momentum. 
\ No newline at end of file
+Some speculators may care little for the [fundamental value](fundamental-value.md) of the asset and instead focus purely on short-term price movements, public sentiment and momentum. 
+
+## References
+* Chancellor, Edward. 1999. ‘Devil Take the Hindmost: A History of Financial Speculation’.
+* Komporozos-Athanasiou, Aris. 2022. Speculative Communities: Living with Uncertainty in a Financialized World. University of Chicago Press. https://press.uchicago.edu/ucp/books/book/chicago/S/bo125281793.html.
+* Faria, Inês. 2021. ‘When Tales of Money Fail: The Importance of Price, Trust, and Sociality for Cryptocurrency Users’. Journal of Cultural Economy 0 (0): 1–12. https://doi.org/10.1080/17530350.2021.1974070.
+* Cembalest, Michael. 2022. ‘The Maltese Falcoin: On Cryptocurrencies and Blockchains’.
+* Daian, Philip, Steven Goldfeder, Tyler Kell, Yunqi Li, Xueyuan Zhao, Iddo Bentov, Lorenz Breidenbach, and Ari Juels. 2019. ‘Flash Boys 2.0: Frontrunning, Transaction Reordering, and Consensus Instability in Decentralized Exchanges’. ArXiv Preprint ArXiv:1904.05234.
+* Bernstein, William J. 2021. The Delusions of Crowds: Why People Go Mad in Groups. Grove Press.
+* Demmler, Michael, and Amilcar Orlian Fernández Domínguez. 2021. ‘Bitcoin and the South Sea Company: A Comparative Analysis’. Revista Finanzas y Política Económica 13 (1): 197–224.
+* Mackay, Charles. 2012. Extraordinary Popular Delusions and the Madness of Crowds. Simon and Schuster.
+* Smales, L. A. 2022. ‘Investor Attention in Cryptocurrency Markets’. International Review of Financial Analysis 79: 101972. https://doi.org/10.1016/j.irfa.2021.101972.
+* Feher, M. 2018. Rated Agency: Investee Politics in a Speculative Age. Princeton University Press. https://www.zonebooks.org/books/132-rated-agency-investee-politics-in-a-speculative-age.
+* Maddox, Alexia, and Luke J Heemsbergen. 2021. ‘Digging in Crypto-Communities’ Future-Making: From Dark to Doge’. M/C Journal 24 (2 SE-). https://doi.org/10.5204/mcj.2755.
\ No newline at end of file
diff --git a/guide/index.md b/guide/index.md
index 714d821..ca1c5c9 100644
--- a/guide/index.md
+++ b/guide/index.md
@@ -31,6 +31,7 @@ Understand the terminology used to describe crypto and web3.
 * [DAO](/concepts/dao.md)
 * [Stablecoin](../concepts/stablecoin.md)
 * [Regulatory arbitrage](../concepts/regulatory-arbitrage.md)
+* [United States Dollar](/concepts/dollar.md)
 * [Central bank digital currency](../concepts/cbdc.md)
 
 ***
diff --git a/site/pages/about.md b/site/pages/about.md
index 80d385e..e3eb0d7 100644
--- a/site/pages/about.md
+++ b/site/pages/about.md
@@ -12,7 +12,7 @@ We will be steel-manning the key claims made by proponents of web3 through consc
 
 ### Big, controversial and making sense is hard
 
-**Web3 & crypto has become a massive phenomenon** with very big claims made about its actual and potential impact. Claims that go far beyond traditional technology boosterism (better, faster) to claims for radical transformation (and improvement) of our economic and social systems – for example, web3 is revolutionary for X where X is everything from money and the economy to governance to funding public goods like (open) software, carbon removal etc.
+**Web3 & crypto has become a massive phenomenon** with very big claims made about its actual and potential impact. Claims that go far beyond traditional technology boosterism (better, faster) to claims for radical transformation (and improvement) of our economic and social systems – for example, web3 is revolutionary for X where X is everything from money and the economy to governance to funding [public goods](../../concepts/public-goods-problem.md) like (open) software, carbon removal etc.
 
 **Controversial and polarizing**: At the same time, there is an exceptional level of disagreement about these claims, even on basic points or definitions. The topic is highly controversial and even polarizing, with strong pro and anti camps. For example, within tech it is one of the most controversial topics we have ever seen and, significantly, disagreement cuts across classic ideological lines -- there are pro/anti libertarians as well as pro/anti socialists.