I've recently released a new version of HN Comment Embed, a greasemonkey script that embeds HN discussions into the webpage being discussed.<p>You simply browse to a posted page, and the HN panel pops up on the side.<p>This version relies on searchYC as its main source, but also parses HN's newest posts page to attain full coverage.<p>http://share.shmichael.com/hn_comment_embed.user.js
I made a site with bookmarklet quite some time ago that does something similar to that.. <a href="http://www.convotrack.com" rel="nofollow">http://www.convotrack.com</a> (was made more for twitter though)