[RickM]

I don't have Gmail but I've found Yahoo to have a very good "junk" filter as well. They, as well as others, ask for account holders to pitch in by identifying mail as Spam as opposed to merely deleting...it's a one click operation as well.

At work I was completely spam free until someone sent me an E-greeting card. Once they volunteer your Email to these services you're toast. From that point on Spam was in my Inbox everyday.