@electronic{del.icio.us,
   title       = {del.icio.us}, 
   url         = {http://del.icio.us/},
   biburl      = {https://puma.uni-kassel.de/url/46efc577b7ddef30d1c6fd13311b371e/hotho},
   keywords    = {social folksonomy bookmark system fav},
   added-at    = {2006-08-15T15:32:36.000+0200},
   description = {},
   interhash   = {46efc577b7ddef30d1c6fd13311b371e}, 
   intrahash   = {46efc577b7ddef30d1c6fd13311b371e}
}

@electronic{www.socialtext.com,
   title       = {Socialtext -- Enterprise Social Software}, 
   url         = {http://www.socialtext.com/},
   biburl      = {https://puma.uni-kassel.de/url/524b58edccff17baab8b24a6f62607f3/hotho},
   keywords    = {social text tools system},
   added-at    = {2006-01-13T13:44:58.000+0100},
   description = {},
   interhash   = {524b58edccff17baab8b24a6f62607f3}, 
   intrahash   = {524b58edccff17baab8b24a6f62607f3}
}

@electronic{www.feeed.de,
   title       = {Feeed.de - Dein Online Bookmark Manager}, 
   url         = {http://www.feeed.de/},
   biburl      = {https://puma.uni-kassel.de/url/88ed5ad17899e6a5fa05dda95b4f3816/hotho},
   keywords    = {social bookmark folksonomy system},
   added-at    = {2006-01-12T14:36:05.000+0100},
   description = {},
   interhash   = {88ed5ad17899e6a5fa05dda95b4f3816}, 
   intrahash   = {88ed5ad17899e6a5fa05dda95b4f3816}
}