I've been also searching for techniques on this subject and yesterday found a series of 1 minute clips on bow shooting tips by Randy Ulmer. I wish I would have bookmarked the sight, because I just tried to find it again and I don't remember where it was.
I think it was a link from the Peterson's Bowhuntingmag web site, and I did find one of the articles on the subject at this link: http://www.bowhuntingmag.com/tactics/me_063004/index.html

Please don't anyone spam me because I'm giving a link to another mag's site. [8D] Just trying to help out a fellow bowhunter!