Show HN: My side project that searches the web for technologies

Hello HN! I've been working on http://underthesite.com for the last month and now think it is ready for some full strength HN feedback. What do you guys think? It crawls up to 10 pages of a given site while you wait, looking for community-provided CSS / XPath selectors and regular expressions. Additionally, I'd like to appeal to you to submit matchers for technologies that you care about. Technologies are easy to add, so add your favorite jQuery plugins, analytics tools, client-side node.js wrappers, what have you. I'm going to be running a large crawl in the next few days and want to make sure to have a good selection of technologies ready. After the crawl, I'll do some analytics and then come back to you guys with some interesting breakdowns of technology usage across the web. So, please tell me what statistics you'd be interested in (top javascript framework, percent of sites using backbone.js, etc.) and submit your favorite technologies. Thanks!