Some Internet people who write about a variety of topics and who I regularly learn from. Most of them are excellent writers, subject domain experts or just really good tweeters. This list is in constant evolution.
Adam Mastroianni
Alex Danco
Alex Guzey
Alex Komoroske
Andrew Côté
Antonio García Martínez
Brian Potter
Byrne Hobart
Casey Handmer, PhD
Cremieux Recueil
Dan Luu
Dan Wang
Derek Lowe
Elliot Hershberg
Erik Hoel
Erik Torenberg
Eugene Wei
John Loeber
Kevin Simler
Laura Deming
Mike Solana
Noah Smith
Packy McCormick
Patrick McKenzie
Paul Graham
Riva Tez
Samo Burja
Samuel Arbesman
Santi Ruiz
Scott Aaronson
Steven Sinofsky
Venkatesh Rao
E
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Alex Danco
Alex Guzey
Alex Komoroske
Andrew Cote
Antonio García Martínez
Brian Potter
Byrne Hobart
Casey Handmer, PhD
Cremieux Recueil
Dan Wang
Derek Lowe
Elliot Hershberg
Erik Hoel
Erik Torenberg
Eugene Wei
John Loeber
Kevin Simler
Laura Deming
Mike Solana
Noah Smith
Packy McCormick
Patrick McKenzie
Paul Graham
Riva Tez
Samo Burja
Samuel Arbesman
Santi Ruiz
Scott Aaronson
Steven Sinofsky
Venkatesh Rao