This is an extension for Google Chrome. It has completely supplanted Delicious bookmarks. Rather than create bookmarks, submit/upvote on Hacker News. When the extension is installed, upvotes will trigger a Delicious bookmark popup.
Full Specifications
What's new in version 1.3
Version 1.3 includes checkmarks for bookmarked links.
General
ReleaseFebruary 27, 2010
Date AddedFebruary 13, 2010
Version1.3
Operating Systems
Operating SystemsWindows 2003, Windows 2000, Windows Vista, Windows 98, Windows Me, Windows, Windows NT, Windows 7, Windows XP