- Audi Passion
- Forums, links, annoucements, photos, news, history, concept cars.
- Audi TT Photos
- Audi TT photos ,gallery, wallpapers, informations, links
- Audi World
- Home of Audi-TT.org and lots of good information on all the Audi products
- Smitty's Auto Service & Repair
- Smitty's Auto Service, Inc. is a family-owned and operated business known for integrity, expertise and commitment to excellence.
- The Audi Zone
- Enthusiast information related to the Audi S4/A4
- TT-West is the largest and longest running North American Audi TT owner's and enthusiast's event held in the Western half of the United States.
- APR - Audi Performance Racing
- Audi Performance & Racing
- Auto Sports Parts
- DTM Autohaus, Inc.
- Performance Parts, wheels, etc.
- High Performance Audi
- Aftermarket performance parts resource for Audi owners and enthusiasts
- Joe Hoppen Motorsport (MTM)
- TT performance parts.
- Performance parts for autos including the Audi TT.
- Audi Auto Parts
- Offers an inventory of Audi Auto Body Parts.
- Audi TT Story (book)
- Here is the full story of how the Audi TT came to be.
- Power and performance for imports
- Roof Rack Shop
- UK Dealer of roof racks, boxes and accessories.
- Tons of parts for the TT plus the TT floor mat
- TT Stuff
- Audi TT Parts and Accessories for the Audi Enthusiast