Netvouz / imartin / tag / umgedreht http://www.netvouz.com/imartin/tag/umgedreht?feed=rss imartin's bookmarks tagged "umgedreht" on Netvouz Is There a Reverse Network Effect with Scale? http://www.readwriteweb.com/archives/is_there_a_reverse_network_effect_with_scale.php ReadWriteWeb Social Web > Social Networks imartin Mon, 16 Mar 2009 20:57:18 GMT