I thought this could be useful. I connected my blog to zimbio today for 5 hours and what I saw was like magic. It sniffed out posts that had not been indexed by Google webmaster and made them their own. Got the best in Google search while my site was not even being ranked. It completely does not work like bloggers.com to boost the identification of articles by Google in your own site. Worst marketing strategy of a blog.
If you connected your site to zimbio and complaining of never seeing your blog posts on Google, you know the culprit.

http://www.seeclouds.com