@electronic{xkcd.com,
   title       = {xkcd: Online Communities 2}, 
   url         = {http://xkcd.com/802/},
   biburl      = {https://puma.uni-kassel.de/url/cb51d47263e1a076b2ca6b6a3171ad3a/hotho},
   keywords    = {2.0 art landkarte landscape web},
   added-at    = {2010-10-14T18:32:26.000+0200},
   description = {},
   interhash   = {cb51d47263e1a076b2ca6b6a3171ad3a}, 
   intrahash   = {cb51d47263e1a076b2ca6b6a3171ad3a}
}

@electronic{blog.magix.com,
   title       = {MAGIX Blog - Das deutsche Social Media Prisma}, 
   url         = {http://blog.magix.com/de/archives/783-Das-deutsche-Social-Media-Prisma.html},
   biburl      = {https://puma.uni-kassel.de/url/aecc853825bcdd5b1f44f5da386fc043/hotho},
   keywords    = {landscape landschaft media social survey überblick},
   added-at    = {2009-09-22T14:09:51.000+0200},
   description = {},
   interhash   = {aecc853825bcdd5b1f44f5da386fc043}, 
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}