The easy explanation would be that although Anders's stepson didn't upload his contacts list, the other relatives involved did, and the stepson appears in their uploaded contacts. Best regards, gm On 24/09/2010 13:49, "jeremy hunsinger" <jhuns@vt.edu> wrote: my guess is that it does a foaf tree of your domain, when you immediately join, but then uses other tools to build and make a foaf tree... a foaf tree is a network map of the relations of your Friends of a Friend, we already know that facebook uses friend of a friend analysis in its basic code and privacy structures, it is likely it uses it in this too. Jeremy Hunsinger Center for Digital Discourse and Culture Political Science Virginia Tech Everything you can imagine is real. --Pablo Picasso _______________________________________________ The Air-L@listserv.aoir.org mailing list is provided by the Association of Internet Researchers http://aoir.org Subscribe, change options or unsubscribe at: http://listserv.aoir.org/listinfo.cgi/air-l-aoir.org Join the Association of Internet Researchers: http://www.aoir.org/ Dr Graham Meikle ---------------------- Senior Lecturer, Department of Film, Media & Journalism, University of Stirling, FK9 4LA, Scotland. T: +44 (0) 1786 466222 F: +44 (0) 1786 466855 E: <graham.meikle@stir.ac.uk> W: <http://www.fmj.stir.ac.uk/staff/graham-meikle/graham-meikle.php> New edited book out September 2010: 'News Online: Transformations and Continuities' http://www.palgrave.com/products/title.aspx?PID=349976 -- The Sunday Times Scottish University of the Year 2009/2010 The University of Stirling is a charity registered in Scotland, number SC 011159.