In making this decision, we assessed five major cities: Boston, London, New York, San Francisco and Washington, DC - as well as St. Petersburg itself. The upshot: after a fairly detailed analysis, I recommended to the board that the Foundation relocate to San Francisco, and the board accepted that recommendation.
As a Brit, I'm pleased to see London was considered. Why was it the only non-US city considered, though? I'm also curious as to why you considered San Francisco better than London - to my knowledge, London is a far more international city that San Francisco, which I would think was a major consideration is choosing a base for the WMF.