Hi guys, the past 2 weeks I made a lot high pr tier 1 web2.0 backlinks and sent tier 2 backlinks to them (not spam) for TWO of my websites. at first my rankings were climbing...about 5 keywords in the top20 for my one website and the other one was climbing too. but since 3 days they are dropping everyday. for my older website it looks like this: even I made a lot backlinks for it too. Is that just a normal google dance? or is something wrong? one more question: would it be good when I'll buy a social signals service for my M$ ? would it help in ranking? so far I only have created backlinks and no social signals/social bookmarks.