Hi Jason,
I just got a message from Google at Webmaster Tools saying:

Dear owner or webmaster of http://erotic-community.com/
While crawling your site, we have noticed an increase in the number of transient soft 404 errors around 2010-10-09 15:00 UTC (London, Dublin, Edinburgh). Your site may have experienced outages. These issues may have been resolved. Here are some sample pages that resulted in soft 404 errors:
http://erotic-community.com/m/sites/calendar/2008/10
http://erotic-community.com/blogs/entry/Membership
http://erotic-community.com/blogs/entry/Marry-Christmas
http://erotic-community.com/m/articles/calendar/2008/10
http://erotic-community.com/blogs/entry/Embed-

--------------------------------------------------------------

This see more is probably not good. Is there a way to get rid of such pages?
on another site which crawls my site there I get "Warning: we found 219 errors on your site. Click on Errors to see the..." and the site is just craweled 54%

Same when I generate sitemaps it crawls calender from 1409 and so on. My stand alone sitemap generator crawled only 50000 pages but so many with that calendar stuff.