GTA: The Gran Turismo Authority  
   Includes information on cars, tracks, updates and contests for players.
   http://members.aol.com/GrindTeeth/GT/

Gran Tursimo Message Board  
   Message board featuring the entire Gran Turismo series.
   http://www.gamingupdate.com/cgi-bin/ubbcgi/forumdisplay.cgi?action=topics&forum=Gran+Turismo&number=7&DaysPrune=30&LastLogin=

Gran Turismo by the Numbers  
   Drivers guide database, several forums and a Gran Turismo FAQ.
   http://www.granturismobynumbers.com/

Gran Turismo Paradise  
   This site has everything on Gran Turimso, Gran Turismo 2 and Gran Turismo 2000. I am also giving away a free game.
   http://www.angelfire.com/games/granturismoguy/

GTPlanet.net  
   Includes car of the week, photo of the day, and information.
   http://www.gtplanet.net/

The Unofficial Gran Turismo 2000  
   Information and screenshots.
   http://geocities.com/ps2gt2000/

Gran Turismo  
   Information about the game and the cars featured from the official Playstation site.
   http://www.us.playstation.com/games/SCUS-94194/

GranTurismoX.net  
   Game information and forums.
   http://www.granturismox.net

Gran Turismo Boards  
   Information and discussion on the whole series.
   http://www.gtboards.com/index.php