ServerBrowser.com!

GameTracker is your one-stop social network for gamers with game server stats, website plugins, and game server banners. From current scores to historical player data and worldwide game server ranking, Game Tracker records detailed statistics on how you, your clan, and your gameserver fare against the competition.Windows and Mac OS users can download GT Lite Client.

A patch that fixes adds new games and fixes a few issues with HLSW.

GameServerDirectory.com is a game server tracking and monitoring website. We offer detailed, real-time information on game servers all around the world. We track game servers for all of the popular Valve games, plus Minecraft.

Qtracker is an Internet/LAN game and MP3 server browser. If you want to find places to play your favorite games, look no further. You can also use Qtracker to administer your game servers, and generate HTML or PHP server listings.

A direct "like for like" replacement for the GameSpy MasterServer, and supports a huge number of games.333networks is the official MasterServer for several games companies, and can be self-hosted, or use the main Master, or both.