F1 USA Grand Prix and F1 Teams websites:

http://imstix.brickyard.com/InetTix/
1-800-822-4639 (USA only) 
317-492-6700 (International) 
http://www.brickyard.com/
https://www.grandprix-tickets.com/
http://www.gpticketshop.com/index_en.shtml
http://www.racedaytickets.com/
http://www.indymotorspeedway.com/
http://f1.racing-live.com/
http://www.f1racing.net/
http://www.formula1.com/
http://www.planet-f1.com/
http://dir.yahoo.com/Recreation/Sports/Auto_Racing/Formula_One/Teams/