Yeah, SEO can be very frustrating. I've acquired a number of quality links since I was number 5, and still I drop (I'm showing #9). There is no point in guessing, as it could be a million possible things. Being #9 is still sending me over 500 new visitors a day just from these keywords. Being number 3, however, would likely double this number.

One idea I have is that I added a new page called "Chat Features". This page outlines and describes all of my chat and chat related features. see more However, google probably sees the terms "chat" and "chat rooms" too often on this page, and therefore considers it "keyword stuffing". I need to dilute these keywords by adding some additional content on this page.