HL2World.com is a news and forum based site that has been around for a long time. The forum is particularly active.

Interlopers has been online since 2004. It posts selected Steam game news but its focus is on content creation.

Jailbreak is simple: Two teams, two jails. When you kill a member of the opposite team, they respawn, locked up inside your jail. Lose, and you get executed! Your objective is to imprison every member of the enemy team. The twist is, you can break out members of your own team, by fighting your way [...]

L4D.es is a website and Spanish Community dedicated to Left 4 Dead. Pagina web de Left 4 Dead en Español.

L4D Inside is a Russian L4D portal.

The L4D Map Database is a library of all Left 4 Dead maps (official and custom) in the form of a wiki that anyone can contribute to. Includes downloads, screenshots, videos, information, and more for each map.

L4D Maps is a website completely dedicated to Left 4 Dead and everything about it.

L4DMods.com covers everything, and I mean everything, related to the L4D community.

LanManiaX2 is a map and mod resource. But don’t let that simple description fool you, it contains a wealth of news and information.

Level Architect is the personal portfolio of Anthony Nichols.

Lit Fuse Films is a group of amateur film makers, some of whom use Half-Life 2 to create short films.

Map-Factory is a database hosting custom maps for any FPS. If you’ve make a map or simply came across a good map, feel free to submit it! If not, then just navigate through the site and you’ll find a lot of good maps!