Hacker News integration for Chrome
Displays the Hacker News comment thread that corresponds to the page you are currently viewing in a sidebar, if it was submitted to Hacker News.
UPDATE Feb 20 2014: uses the Algolia API instead of HNSearch, which is being sunsetted.
Note that this extension, by necessity, MUST submit the URLs of webpages that you visit to https://hn.algolia.com/ to search for corresponding Hacker News items. They could conceivably use this data to reconstruct your browsing history if they were inclined enough and able to uniquely identify the requests your browser is making. Please do not use this extension if you do not trust that site with this sort of data!
Source is available at https://github.com/powerpak/hn-sidebar and a discussion of the code is available at http://tedpak.com/2013/03/20/hacker-news-sidebar-a-chrome-extension .
This is a resuscitation of an old extension with the same name by Omer Gertel that has lost function due to changes in searching APIs, HN's move to HTTPS, and HN's use of X-Frame-Options.