Netvouz / imartin / tag / hälfte http://netvouz.com/imartin/tag/h%C3%A4lfte?feed=rss imartin's bookmarks tagged "hälfte" on Netvouz Half Of All Clicks On Display Ads Are Worthless http://www.techcrunch.com/2008/02/13/half-of-all-clicks-on-display-ads-are-worthless/ Social Web > Onlinewerbung imartin Wed, 13 Feb 2008 21:05:01 GMT