http://www.huntersfriend.com/

There is a lot of info about compound bows. Very good descriptions of some of the terms I've seen floating around on this site also. I'm new myself so I read everything on the site and found it very beneficial. These guys sell bows with everything needed to hunt ready to shoot minus tweaking for yourself.
No idea if they're reputable or not but I do enjoy reading their instructions. Good sense of humor goes a long way.