The main one u need to know is www.honda-tech.com. Especially the Type R forum. Its the only one i can spend hours on each day. Most knowledge, most experience, and the best people. Best of all there are not a whole lot of ricers. Most stay hidden cause they get made fun of for asking dumb questions. Right behind honda-tech is this site cause alot of the older Type R owners come here with a wealth of knowledge especially Trey. I see this site will surpass HT since alot of the mature Old School guys are coming here more often cause Honda-Tech is getting alittle out of hand. I bounce my way from here to HT and have learned more in a year than i ever thought i would. Best advice is search, search, search and u will be fine.