Mag's and websites are a good method of getting informed about 3d. But I would have to say the biggest helper I have had Is my local Archery Shop. Not just a hunting shop but a place where the owner shoots IBO and/or ASA shoots. They will have a ton of info regarding what works and what does not. And here! Man you dont know what a welth of infomation this message board is, if you have a question about a product you can bet someone here has tried it.

http://www.archeryinfonet.com/
http://home.att.net/~sajackson/archery.html