Slay, Just don't post any advertising from your site. I think that worked fine for Craiglook. Futhermore, Yahoo pipes seem to be working fine with craigslist.

Slay, Just don't post any advertising from your site. I think that worked fine for Craiglook. Futhermore, Yahoo pipes seem to be working fine with craigslist. Are you sure it's not your site being blocked ?