Facebook just filed an amended S-1 (that all important document that officially announces its public offering plans) with some new financial info. Now included in the charts and graphs is everything you wanted to know about Q1 of 2012 at Facebook (but were afraid to ask). The new SEC filing reveals that revenues are way up at the social network over last year (a whopping 45 percent higher than Q1 of 2011), but down slightly from last quarter (six percent), settling at a more than respectable $1.058 billion. Of the cash it took in, $872 million of it was ad revenue, which