Quote from Pekelo:
Zynga:
"....Zynga now has more than 1300 employees worldwide.
As reported by Bloomberg and others, stock trades on the private stock sale service SharesPost established a valuation of above $5 billion for the company, greater than the public market capitalization of gaming industry leader Electronic Arts and has more than 320 million registers users, 1,300 employees and estimated revenues above $500 million for 2010."
Shouldn't we evaluate companies based on profit rather than revenues??
Also there is a difference:
"Business model
Zynga is supported in two manners: Via direct credit card payments and partner businesses."
So users actually pay for Zynga games, unlike FB users.