The Blog Blitz is an awesome idea created by DL Hammons.
The purpose is simple:
Every now and then, a blog and a specific date will be selected. You'll receive an email with all the information. Then on that date, everyone will go out of their way and leave an encouraging comment on that blogger's most recent post. We're hoping for over 100 comments in one day!
It's easy, and you'll make the lucky blogger feel like a billion bucks.