Umm, in there own words there not profitable:

http://investor.zynga.com/releasedetail.cfm?ReleaseID=695419

Quarter ended June 30, 2012 Revenue $332,493, Net income (loss) ($22,811)

6 months ending June 30, 2012 Revenue: $653,465 Net income (loss): ($108,162)

You might say it's a positive trend and there losses are decreasing, but they had some profits last year that are 1/10th their current losses.

I suppose it depends if you're looking at the GAAP(negative) or non GAAP earnings(positive). I'm not sure which one tells the truth, but most press sources seem to cite a positive EPS of $0.01. In any case, this is not really a company that's hemorrhaging money.