• Trailfire
  Building Vannevar's Memex create navigation paths with a browser plugin
  There are a plethora of bookmarking sites out there and only a few of them have become very successful - del.icio.us and Stumbleupon are two that spring to mind. Trailfire is a bit different from your average bookmarking site, because they don't just allow you to share bookmarks - they make it easy for you to share 'trails', which are "annotated navigation paths". Trailfire is a fr
  in Public bookmarks with app browser plugin social web

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