It's a good summary of existing plugins, but... Like dmix said, it's hard to find the demo: <a href="http://bugsvoice.com/applications/bugsVoice/site/test/tagBoxDemo.jsp" rel="nofollow">http://bugsvoice.com/applications/bugsVoice/site/test/tagBox...</a> , and once I tried it, the list of suggested tags didn't match the tags it was actually auto completing, which lead me to believe it was broken. IE: it says "suggested tags: jquery tagging tag component delicious javascript", but "tag" doesn't complete.