I just found out about this. These people are trying to see how long it will take to get 1.000.000 blogs listed. They started on April 10th and I just entered the list with #1146.
A similar thing, but without the ultimate goal of one million and a bit younger is the Wiki Blog Directory. There you can list your blog according to categories.
Social projects for today: check. :)
[PS: I know that I’m a huge list freak… I just love them.]
kalafudra's Stuff 
Kalafudra:
This is probably not an appropriate comment, I first thought and then I recalled the bit about ‘Social Project’. I tagged you for a meme – a social project? – so if you have time, do please respond :-)
http://laviequotidienne.wordpress.com/2008/04/30/a-game-of-tag/
Thanks.
me = 1176 :)
@Shefaly:
A meme does qualify as a social project, I think.
@Swen:
yay! Welcome to the club! :)