We all want to stop spammers. But there's no way to stop them from sending
spam...all you can control is what you receive, or, how you receive it.
Check out Spambayes (google it) for one option.
And don't use your "real" email address when you're signing up for anything
on the Internet - use a throwaway-type account like Hotmail or Yahoo. Every
time you enter your email address on a web page, you're increasing the odds
that you'll get spam.