If you don’t like our site, try out one of these:
Math blogs
Gowers’s weblog.
Terence Tao’s blog.
The n-category café.
Qiaochu Yuan’s blog, Annoying Precision.
Online math resources
Mathoverflow, for research-level questions;
math.stackexchange, for all other math-related questions.
Doug West’s glossary of combinatorics terms.
A collection of links to the homepages of set theorists.
The UNL Math Department’s homepage.
Resources for & friends
TeX.SE for questions & answers.
ctan.org.
tug.org.
Detexify, a wonderful tool for quickly identifying the correct symbol command.
A large collection of MetaPost examples.
Diversions
xkcd.
An exam.
The UCDavis front for the arXiv.
Miscellaneous
A WSJ article about mathematicians.