Gear Devis dedicated to the projects and work of Gear, a Development team creating content for the Source Engine.

Half-Life Creations provides a professional atmosphere for third party developers. Forums, downloads and even hosting for modifications are availble on this friendly site.

HL Improvement is dedicated to the creation of custom content for all things Valve related. With tons of custom content, and a friendly community. What could go wrong?

Half-Wit 2 is packed with tutorials, guides and other useful bits of information to help anyone creating custom content for the Source Engine. There is plenty of good stuff here and well worth checking out.

Halflife2.net features information about all Valve titles, as well as the largest Valve forum community outside of Steam. It is a good resource for news and general information about the games, and the community can answer most Half-Life related question. The site is hosted and supported by Valve themselves.

Left 4 Dead 411 looks like the perfect place to start if you are new to the game. It contains plenty of help for new players.

Mine-Dog.net is an established group of gamers who enjoy playing all steam games together (and some non-steam games as well). They also enjoy making comics, movies, and all other forums of media. They currently run three servers that change games monthly. All are welcome to join. Previous Design:

Mod DB is the largest website dedicated to supporting independent development of games

Netday is dedicated to custom maps of high quality only. Maps are added regularly (at least one per week). It also covers mods like Dystopia, Portal Prelude and JailBreak. The map reviews are both in English and in French. It is advert free and features direct download to all files.

Planet Half-Life is the daddy of them all. It’s been online longer than most and is generally updated daily.

Podcast 17 is a weekly verbal tour of the Half-Life community. It covers everything related to the Half-Life universe and features lively, informative recordings.

SteamPowered is the home of Steam, a digital distribution platform. The website offers visitors the ability to buy and download games, interactive with other Steam users.