Facebook warns growth will slow, shares dip

Facebook Inc shares tumbled more than 6 percent in after-hours trading on Wednesday after the company warned that revenue growth would slow this quarter, offsetting strong earnings that handily beat Wall Street estimates. In a call with analysts, Facebook Chief Financial Officer David Wehner said ad growth would likely slow "meaningfully" due to limits on "ad load," or the number of ads that Facebook can put in front of customers without alienating them. Facebook shares were down 6.9 percent in