I have been getting really pissed off with the amount of spam that my BlogSire and Well Blog Me! blogs have been getting. It was so bad I had to personally go through and delete 30-40 spam related comments a day. I was at my wits end and decided to see if there was a plugin that would solve my problem.
Luckily I was able to get hold of a plugin called Spam Karma which has completely eradicated the problem. It now does it all for me. It is quite configurable and a time lifesaver.