The Jargon File: Eric Raymond, king of the hacker geeks, maintains this, the be-all and end-all of computer geek-speak. The Jargon File is a listing of thousands of hacker terms and phrases and what they mean. From the relatively simple “flame” and “Suzie COBOL” to the really obscure like “lots of MIPS but no I/O” and my personal favorite “the September that never ended.” Fun to browse.
indent style: Excellent entry from The Jargon File that describes all the common indent styles in use today. If you program, read this. I use Allman style. You? (What, no VB-style indents? I'm shocked...)