I highly reccommend everyone watch this. This is a primer for distribution. I have heard of this guy's seminar, but I am not promoting it nor have I attended it. I found this 54 minute video and it will teach you quite a bit for free.

http://www.freshdv.com/2007/12/freshdv-film-school-distribution-101.html

I hope this link works.

I double posted this in the production area as well so forgive me.