Hey guys, I recently purchased a service here that created 400+ web 2.0 articles and posted link on them pointing to my site. I want to mention that these were public 2.0s. After about 2 weeks, I noticed my page one rankings for several keywords are actually not in the top 100 and other KWs fell only a few positions. I have had this happen in a different scenario and had the KWs pop back. So my estimation is that it will most likely happen again. (Yes, I do have a diverse link scheme)
What are your thoughts on this?