Here's a collection of my favourite places on the Internet.

Development

Gamasutra - An online game development magazine.

Gamedev - Lots of articles and resources on game development.

Devmaster - Similar to Gamedev.

IGDA - The International Game Developers Association.

The Portland Pattern Repository - The wiki here has pretty much every design pattern in existence!

Stroustrup's C++ Page - Lots of useful C++ information and links from the man himself.

Simple Directmedia Layer - The cross-platform multimedia library.

RenderMonkey - Possibly the best free shader designer tool.

Games

UK Resistance - Gaming satire at its very best.

GamesIndustry.biz - News on the games industry.

Eurogamer - Games news, reviews and downloads. EurogamerTV is particularly good.

Uncle Clive - Another funny game site.

VG Cats - Extremely funny online gaming comic.

Ctrl Alt Del - Another funny online gaming comic.

The Register - Tech news.

Harmony Central - Musical news, reviews and downloads.

Guitar Tricks - Guitar lessons, techniques and theory.

Weebls Stuff - Some of the best flash animations on the Internet.