Algorithmic Game-Theory/Economics: Noam Nisan is a CS Professor at the Hebrew University of Jerusalem and a Research Scientist in Google, Tel-Aviv.
Andy’s Math/CS page: Sporadic notes on mathematical and non-mathematical topics, from a student of computational complexity.
bit-player: This blogger is no amateur, as he’s the senior writer for American Scientist, and writes that magazine’s Computing Science column. This blog focuses on computing and mathematics.
Combinatorics and more: Gil Kalai, mathematician, works mainly on geometric combinatorics and the study of convex polytopes and related objects and on the analysis of Boolean functions and related matters.
Computational Complexity: Enjoy the topic, brought to you by Lance Fortnow and Bill Gasarch and linked to Scientific American.
Cryptosophy: This blog is offered by a theoretical computer scientist, a cryptographer who focuses on cryptography.
dense outliers: Theoretical computer science from Down Under, rendered by Taso Viglas and Joachim Gudmundsson.
Gödel’s Lost Letter and P=NP: This is a blog on P=NP and other theoretical questions within computer theory penned by Dick Lipton, Georgia Tech’s Frederick G. Storey Chair in Computing.
Gowers’s Weblog: Gowers is a member of the Department of Pure Mathematics and Mathematical Statistics at Cambridge University and also a fellow of Trinity College.
in theory: Home of LaTeX2WP, a program that converts a LaTeX file into something that is ready to be cut and pasted into WordPress.
Inherent Uncertainty: This blog focuses on computer learning and game playing, prediction and decision-making.
Paul Goldberg: This CS professor at the University of Liverpool writes about theoretical computer science, economics, and academic life in general.
Shtetl-Optimized: Scott Aaronson’s stance is that quantum computers are not known to be able to solve NP-complete problems in polynomial time (see last category).
The Geomblog: This blog is filled with “ruminations on computational geometry, algorithms, theoretical computer science and life.”
The Leisure of the Theory Class: This blog is devoted to speculation and ruminations on all aspects of economic and game theory.
the polylogblog: Andrew McGregor is an assistant professor in the computer science department at the University of Massachusetts and a member of the theory group.
Theorem of the Day: Robin Whitty started Theorem of the Day in 2005, aiming for 366 theorems.
What’s New: Professor Tao provides updates on his research, discussion of open problems and other maths-related topics.