It's a Blog Explosion
I too have signed up with Blog Explosion after seeing an entry Andrea wrote.
Felt silly though. I spent 30 minutes trying to find out to earn those damn credits. I hadn't realized that you have to stay on the page for 30 seconds then click the number requested on the banner. See... without coffee really stinks!
Any hoo, this Blog Explosion seems to be taken off like wild fire. A lot of blogs are now pimping them. So I was shock to see that they had only been around for a month and have a directory of over 5,000 members. Thats crazy!