This post is over 12 years old - it might be slightly outdated and consigned to the history books.
Big thanks to John Resig, the creator of JQuery for giving BuiltWith a mention in his keynote presentations. I think he has done it in more than one event but there's a great video from Boston Fall Keynote 2010, you can watch the video here http://events.jquery.org/2010/boston/video/video.php?talk=john-resig.
John mentions BuiltWith and shows JQuery's success over the years as seen on this graph. JQuery's succes has beaten all other web technologies we track so well done to John and his team and the open source community as a whole.
JQuery Keynote Presentation and BuiltWith Mention
BuiltWith® is a website profiler tool that tells you what a website is Built With.