hoarde.rs has been discontinued. Similar sites and apps include Pinboard. It's paid, but BibSonomy and SemanticScuttle are free. Other options are DropMind and BookMacster. In total there are five Social Bookmarking Tools like hoarde.rs for self-hosting, Mac, Windows and Linux.
Pinboard is a bookmarking website intended for people who want to reliably keep track of large numbers of links. Its goals are to be useful, fight bloat, keep things fast, and stay small. Social bookmarking for introverts. m.pinboard.
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BibSonomy is a system for sharing bookmarks and lists of literature (BibTex format).
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SemanticScuttle is a self-hosted and web-based social bookmarking tool experimenting with new features like structured tags and collaborative descriptions of tags. Originally a fork of .
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