Valve Community

UberCharged.Net contains “random crap referring to TF2, hopefully vaguely entertaining.”

Mod My What covers the modding scene with articles and news.

Nana’s Paradox covers Source games and runs articles and news about maps and mods.

Games On Net is a gaming portal for an Austrailian ISP. It covers lots of games, and has active forums.

OnlineGame.se is a Scandinavian site that covers Team Fortress 2.

TotalHL.hu is a Hungarian Half-Life portal.

Gamasutra is a fantastic site for game developers. It covers industry news and lots of interviews and features. The site requires registration but it’s free.

The Combine Overwiki is a wiki encyclopedia dedicated to the Half-Life universe and its related subjects. Its main purpose is to treat the available content in an intelligent and analytical way, with emphasis on behind-the-scenes material when available.

It might seem strange to add Wikipedia to this directory but it contain some very useful information for Valve’s fans. The sections on the games are very detailed. It is also available in many langauges.

Tweak Guides provides incredibly useful information and tips on how to get the most out of your hardware and games.

World Of Level Design is a website/blog aimed at those interested in Environment Art and Game Level Design. It contains plenty of original content, including tutorials, articles and interviews. There is also a lively forum.

Team Fortress HQ provides the latest news, articles, skins, maps, sprites, and everything else Team Fortress you can imagine.