This all comes after Yelp turned down a $500 million or so acquisition by Googlebefore closing a deal with Elevation Partners, who promised to invest as much as $100 million in the company. Yelp also allegedly experienced its first positive cash flow status late last year; and the double exodus couldn't possibly be related to the great let down of Bono's denied admittance to the Yelp board of reps. Indeed this "leaving to go travel" business has a much more serious stink to it. If you're privy to any insider knowledge about these goodbye Yelps, do drop a line.