摘要:The bad news keeps piling up on Facebook. In this column, veteran advertising and advertising expert and speaker Bob Hoffman looks at how Facebook may have fudged numbers about the size of its audience. In one instance, Facebook claimed it had more users in the U.S. in the 20s than actually exist, says Hoffman, citing documents made available to the Wall Street Journal for its FB expose.In other news, revelations are emerging that Google and Facebook may have had a secret agreement in which FB was guaranteed a certain number of ad auction wins.