Today is the second day of MindTrek conference, and I am happy just to lean back, listen, and participate as an audience. This camera-photo is taken during the opening session, showing the chief scientist (Yahoo’s Connected Life) Marc Davis speaking about social media from a system oriented and ecosystem perspective.
frans goes blog 
Marc made interesting remarks also about producing current socio-technical (online) systems as designing the network topology: how the people connect to each other. It is about creating the digital architecture for people to connect to each other (Facebook is good example in this). He also called for interdisciplinary teams to tackle the complex challenges related to these new services. An important point.
Marc also demoed interesting camera-phone application of theirs, ZoneTag; see: http://zonetag.research.yahoo.com/installation_summary.php (think about contextually tagged, geo-located photos, connected into Flickr tags and data) .
He also introduced some more information about their platforms and products, including Yahoo WOEID (Where on Earth ID); more information: http://developer.yahoo.com/geo/
oneConnect: http://mobile.yahoo.com/oneconnect
Blueprint: http://mobile.yahoo.com/developers
Fire Eagle: http://fireeagle.yahoo.net/
ZoneTag: http://zonetag.research.yahoo.com/
http://developer.yahoo.com/yrb/zonetag/