Before penguin 2.1 I was ranking about #5-6 for one keyword in g00gle.com. Since the update, that keyword has dropped out of sight, like -293 towards the bottom. However for the same keyword, I'm ranking in g00gle.co.uk around #40 (dancing a bit). My question is... how? how is that even possible? I mean.. is the algo different for .com and UK g00gle? For the same website i still have some keywords in page 2 in g00gle.com so its not really been slapped hard overall.. just mainly for that keyword (which was my main keyword). My other question is this. Is there any chance I can recover decent rankings for that keyword? I built quite a few web 2.0s for this keyword although it only represents about 3% of my anchor texts. Should I remove those links, or rather build more powerful links with that anchor text (like high PR homepage links?). Any help or suggestion is much appreciated.