i would assume that your guesstimate of 8 figures is right on....considering cookinggames.com was getting roughly 500k uniques/mo i would estimate that site alone is worth 2-3 mil
Bill's tighter than the Sphinx on the actual figure. I based my 8 figure estimate on the fact that seed funding alone was $2 million. Then a user base of 4 million /month is astounding. Bill's a smart entrepreneur, I would not be surprised to find out the company sold for $20 million or more.