There is just too much to know to list here. If you want good info and a chance to meet a lot of great guys and gals who fly fish youi should go to a meeting of the Northern Lights fly tiers
http://www.nlft.org/about
You are in luck because they are having their last meeting for the summer tomorrow and the usual meeting place. You can find it on this link. They are very easy to talk to - just show up and expres an interest and you will be set.