As expected, this are fluctuations occurring in Google’s results with different rankings coming in depending on the datacenter hit. it appears that they are testing out some additions to the algorithm based on Caffeine results. things should settle down by Monday or Tuesday is all goes as it generally historically does.
Hang on to your hats and hope the update treats you well.
For those of you not yet away – you can view your results on Google’s Caffeine server at http://www2.sandbox.google.com/ (Link removed – no longer available).