I was checking some stats at work and felt like searching my keyword and couldn't find my site at its usually page 4 position, then found it on page 1 at #3! But now it's back at page 4? It's a very competitive keyword, so I was expecting a page by page increase. Do you think this is just a fluke (as if algorithms have flukes...) or did I switch servers when my site was on page 4 on the second search, meaning the other servers will soon have me at #3? I'd like to think that, but it seems strange to jump straight to position 3, right behind Wiki and an authority site.