YouTranscript for text transcripts of online videos

It's interesting what you stumble upon by accident. I ran across a project the author of Let Over Lambda is working on, called YouTranscript. It is something I've wanted for a long time. It provides transcripts of some technically oriented YouTube videos. What I thought was really interesting is the way the web page for each video highlights the text as the video is playing, and each fragment of text is a clickable entity. For example, 6-Minute Memristor Guide.