Just registered for this forums, interestingly if one searches for 'audi' forums on google you have (plus or minus a few) three choices:
3) Or these ones, http://www.audi-sport.net
I chose this because it had a nice layout and more posts for my car the A4 B7 chassis. The number one forums from vw had the most posts but I didn't like the layout.
I hope I don't regret! Nice to meet you all ...