Planet Team Fortress 2 - Includes news and reviews. Also includes screenshots and streaming video clips of the game.
Allegiance - Site includes tactics about classes and weapons available. The site also contains screenshots and video clips.
Command Center - Mainly a site for resources about the game, including some links to more sites and official interviews.
Sierra: Team Fortress 2 - The official site for the game. Includes information about the development of the game. A forum for questions and answers. The usual official clips of the game and links to other sites.
FilePlanet - Source of all the available, official, video clips for download and a selection of screenshots.
