These are some lightly categorised sites or pages I think are worth reading. For the most part, these are sites that have a lot of stuff, so any one of these should keep you busy for a while. has some maths stuff on it.

Complex Projective 4-Space

"Where exciting things happen", hosts a blog about "interesting aspects of mathematics" covering a wide variety of topics, sometimes with some code thrown in for good measure.

The Dissenter

Linking to a youtube channel (this one) doesn't really fit the theme of this page, but this one has enough interesting stuff and is obscure enough that I'll make an exception. It contains more than 600 700 (and rising) interviews with "top intellectuals and academics". There's enough stuff that something will probably interest you.

EuSpRIG Horror Stories

The European Spreadsheet Risks Interest Group, which does what it says on the tin, maintains a list of some of the spreadsheet failures impactful or interesting enough to be reported in the global news. You can read it at

Erich Friedman is (unsurprisingly) Erich Friedman's site. Contains lots of fun stuff, including distinctive facts about some (many) numbers up to 9999, this paper on square packing, and enough puzzles to keep you going for a while.

E. W. Dijkstra Archive — an archive of transcriptions of most of Edsger Dijkstra's 1318 "EWD" manuscripts, as well as a few other bits. It's nice to see important history preserved in a usable format, and at least now I can't complain I have nothing to read. Most of the actual content is fairly accessible too.

Matrix Resolutions

The best and most comprehensive analysis of the matrix films and surrounding media. Contains interesting theories, debunks lesser interpretations, and has line-by-line analysis of significant scenes.

Michael Abrash's Graphics Programming Black Book is an ancient tome containing timeless advice on optimisation, as well as some technical details that are probably… not so timeless. I like it though, it's more "fun" than "serious study material" I guess.

Playing to Win — Becoming the Champion

By David Sirlin, available at

This is a short book primarily about competitive games. It's insightful, realistic, and truthful, and worth reading even if you don't play any of those kinds of games.

Pluralistic: Daily links from Cory Doctorow is Cory Doctorow's blog, with articles about digital rights, economics, and politics. He posts almost daily, and since he's been blogging for so long so consistently, has unlocked the ability to include lots of things he himself wrote in his "This day in history" section every time. "Optimized for Netscape Navigator."

Ridiculous Fish has some cool stuff on it, particularly this article about where the magic number comes from when division by a constant is replaced by multiplication and bitshifts (and why that works in the first place).

Search the Internet hosts a search engine where you can find new things, rather than whatever the obvious names are showing these days.

sndkit — a sonic toolkit for computer music composition "It aims to bring a collection of useful audio DSP algorithms together in one ecosystem, and document how they work."

Speculative Grammarian

The finest journal in the field of satirical linguistics, at Released quarterly (though this is changes about as often). Inimitable and speaks for itself.

Surfaces — an "open literary arts platform [...] working to cultivate new literary terrain [...] exploring the textures of dislocation, technology burn-out, and pain".

The Xenharmonic Wiki

A collection of resources and so on for microtonal/xenharmonic music, which you can find at It's a good place to learn about the topic.