Here are some of my choosen links from associations to friends pages and stuff for building. I hope this helps you in your search and thanks to those that created these sites I have linked to here:
Building Plans:
Atomiczombie is my favorite site to date. You will not find a better site for getting great easy to build plans for just about any bike configuration you can think of. And the support forum is next to none: http://www.atomiczombie.com/index.htm
Rickey Horwitz ThunderBolt plans. This is a hard build. If your just starting out - don't kid yourself - unless you have a some background in building already, this maybe a little more then you can chew: http://www.ihpva.org/Projects/PracticalInnovations/index.html
If you want an updated version of the Thunderbolt go here to Rickey Current site: http://www.hellbentcycles.com/
Associations:
http://georgianbents.ca/index.htm
Builder sites:
Tim Hicks -- great builder and great page. http://fleettrikes.com/
