• Combined ego networks of 13 Twitter accounts associated with cryptocurrency, blockchain, Bitcoin, smart contracts, decentralized finance, cryptotrading, and a bit of cryptography too... Data grabbed September 2020
• Combined ego networks of 25 'rationalist', 'post-rationalist', 'critical rationalists', 'meta-rationalist', etc accounts. Generally, these are accounts who know what SlateStarCodex and LessWrong are.
• Combined ego networks of 37 leftist Twitter accounts. Accounts lean farther left. Tried to get even distribution of socialists, communists, anarchists, and others. Probably biased towards literary crowd because of all the magazines. Data from Feb-Mar 2020.
• Combined ego networks of 23 Twitter accounts. Frogtwitter, 'alt-right', 4chan-adjacent humor, NRx, r/acc, America First conservatism, etc. Data from Jan-Mar 2020.
• Combined ego networks of 17 Buddhish people on Twitter: meditators, usually Buddhist-inspired, many with 'pragmatic dharma' leanings. Data from Jan-Mar 2020.
• Combined ego networks of 8 formal methods advocates on Twitter. Data from Jan-Mar 2020.
• Combined ego networks of 68 Twitter accounts, chosen mostly arbitrarily. Not much of a unifying theme. Data from Jan-Feb 2020.