Dijkgraaf - 11:47 pm on Aug 16, 2010 (gmt 0)
Visited my site as well
Fetched robots.txt and the root page.
The IP I have is 18.104.22.168
Page in the UA describes the bot and claims it obeys robots.txt.
Main page of the site says "The best of social media - filtered and organized by topic"
Seems well behaved so far.