If you haven't read on Rick's Rainmaker blog or Dave's Sales Management blog yet, Guy Kawasaki has created an aggregator of sales blogs on his aggregator site, Alltop.
Ever since I saw him looking for "marketing" blogs on Twitter for Alltop, I've been pestering him and telling him he needed a sales.alltop.com page too.
It's launched with a bunch of my favorite blogs, as well as some new ones that look great.
If you have other suggestions, you should send them to Guy via twitter.