Venkatesh Rao@vgr100 yrs ago, "I know half of the money I spend on advertising is wasted, the trouble is, I don't know which half" -- John Wanamaker 1/25:14 PM · Mar 16, 201410 Retweets16 Likes
Mark Potts@pottsmark·Mar 16, 2014Replying to @vgr@vgr @pmarca Wanamaker was an optimist: http://recoveringjournalist.typepad.com/recovering_journalist/2007/04/wanamaker_was_a.html…1
Larry Rosenthal@LarryRosenthal·Mar 16, 2014Replying to @vgr@vgr @pmarca you can track all the clicks and even try to define all the fingers attached. BUT the process will still waste half your money)