Valve Community

The Cake Is A Pie is a video-blogging site dedicated to reviewing the latest in the Portal community – particularly custom mapping.

Half-Life2.De covers everything related to Half-Life 2.

F13.Net is a review site that ocassionally covers Valve’s games.

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

The Sven Co-op Map Database is exactly what the title suggests; a database of maps for Sven Co-Op.

Thinking With Portals is a website dedicated to Portal and its custom maps.

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

TotalHL.hu is a Hungarian Half-Life portal.

Mods Online is a news and community forum, with a very active user base.

Geek-Gaming is a French site that mainly seems to cover TF2, with the occaionsal review of Half-Life 2, EP1 and EP2 sp mods.

Gaming.Fi is a Finnish website covering plenty of games other than Valve’s games. It features plenty of updates and an active forum.

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