Insufficient funds http://srimatitechno.org/Srimati/phar ... mg-of-effexor-enough-tezr how long do effexor withdrawal side effects last Rebecca Lieb, a media and advertising analyst at AltimeterGroup, said one billion is an abstract number. "As impressiveand as big as Facebook is, by breaking it down more regionallywe are getting more of an idea," she said.