Proving Ground

GameSpot
News, previews, images, and a forum.
http://www.gamespot.com/ds/sports/tonyhawksprovingground/

GameSpy
Previews, screenshots, and movies.
http://xbox360.gamespy.com/xbox-360/tony-hawks-proving-ground/

GameZone
News, trailers, screenshots, and links.
http://ps3.gamezone.com/gamesell/p32521.htm

IGN
Videos, screenshots, previews, news, press releases, and a message board.
http://xbox360.ign.com/objects/906/906157.html

Team Xbox
Previews, movies, news, and screenshots.
http://games.teamxbox.com/xbox-360/1742/Tony-Hawks-Proving-Ground/

1UP
News, previews, images, and videos.
http://www.1up.com/do/gameOverview?cId=3159495

Wikipedia
Article describing the gameplay, location, features, skaters, and soundtrack.
http://en.wikipedia.org/wiki/Tony_Hawk's_Proving_Ground