Welcome to WebmasterWorld Guest from 126.96.36.199
All in all, using all my fingers and toes, the $2 billion sounds a little low, maybe $3 billion. Think of all those keyword bids going into GoTo, BizExpress, LS paid submit (INK coming?).
Just remember what the late Sen Everett Dirksen said:
A billion here, a billion there, and pretty soon you're talking real money.