The blue social bookmark and publication sharing system.
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structured map of the World: share any place, ruler, address search, cities lists with capitals and administrative centers are marked. Plan with streets and roads, states and regions boundaries, streets panoramas etc.
My: alternate interface to Google Maps
BibSonomy is offered by the KDE group of the University of Kassel, the DMIR group of the University of Würzburg, and the L3S Research Center, Germany.