Also Dan Piponi's blog (http://blog.sigfpe.com/) is pretty good if you're Haskell hacker, but in that case you probably already heard about it.

I came across his post about psychological effects of learning category theory[1]. As someone who has just started learning category theory, I am a bit alarmed since I sort of experience these symptoms. Anyone has thoughts about this?

[1] http://blog.sigfpe.com/2006/03/category-theory-screws-you-up...

Easily.