Gnolia, named Ma.gnolia until 2009, was a social bookmarking web site with an emphasis on design, social features, and open standards. It is now perhaps most notable for losing members’ bookmarks in a widely reported data loss incident in January 2009. It relaunched as a smaller service several months later and was ultimately shut down at the end of 2010.
Users could rate bookmarks and mark bookmarks as private. Unlike its main competitor Delicious, Ma.gnolia stored snapshots of bookmarked web pages. One feature that distinguished it from other similar web sites was the group feature, which allowed several users to share a common collection of bookmarks, managed by a selected number of group managers.