Why some people associate spam and rss2blog continuously is beyond me, but if you want to build a massive blog network that will run hands free for as long as you want, then rss2blog is for you. Check the demo site below, more pages being indexed by google everyday. Theres even more this morning to my surprise.
Heres todays early SE stats thus far after 18 days
Google 100 91.7 % 100 91.7 %
Unknown search engines 4 3.6 % 4 3.6 %
Yahoo 3 2.7 % 3 2.7 %
MSN 2 1.8 % 2 1.8 %