http://netvouz.com/imartin/tag/meinungsf%C3%BChrer?feed=rss imartin's bookmarks tagged "meinungsführer" on Netvouz http://www.ethority.de/weblog/index.php/archives/2008/friendrank-google-entdeckt-den-social-graph/ Social Web > Onlinewerbung imartin Mon, 07 Jul 2008 13:35:50 GMT http://www.chicagobusiness.com/cgi-bin/news.pl?id=33628&seenIt=1 Crain's Chicago Business Social Web > Marketing imartin Fri, 10 Apr 2009 08:06:09 GMT