Hi, I have a site that ranks for the top three results for a particular keyword. When that site is indexed, I get about 200 hits a day and convert at least 5 sales a day via amazon affiliate program. However, the site is only indexed for a week or two, then all of the sudden its completely off the first 100 results, I don't think its listed at all even after that. The site has a PageRank of 2, and about 50 backlinks. Everytime this happens (has happened three times now), I request reconsideration via the big G webmaster tools and 2 weeks later its back to the top 3. Whats going on and how can I prevent this from happening? Is someone targeting my site and somehow exploiting the big G to penalize me?