@electronic{www.spiegel.de,
   title       = {Marken-Netzwerke: Yahoo will endlich Geld mit Web 2.0 verdienen - Netzwelt - SPIEGEL ONLINE - Nachrichten}, 
   url         = {http://www.spiegel.de/netzwelt/web/0,1518,463391,00.html},
   biburl      = {https://puma.uni-kassel.de/url/3de895f7e60907ab42541c7b8c8044cb/hotho},
   keywords    = {web geld 2.0 yahoo news business},
   added-at    = {2007-01-31T15:49:57.000+0100},
   description = {},
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   intrahash   = {3de895f7e60907ab42541c7b8c8044cb}
}

@electronic{www.economist.com,
   title       = {Among the audience | Economist.com}, 
   url         = {http://www.economist.com/surveys/displaystory.cfm?story_id=6794156},
   biburl      = {https://puma.uni-kassel.de/url/7d1c854be7573241c5d1398cd0e0981e/hotho},
   keywords    = {web 2.0 folksonomy survey tag business},
   added-at    = {2006-04-26T10:00:19.000+0200},
   description = {},
   interhash   = {7d1c854be7573241c5d1398cd0e0981e}, 
   intrahash   = {7d1c854be7573241c5d1398cd0e0981e}
}