YouTube just announced a new feature that you can deep-ink to a certain time of the video by adding a time stamp to the URL. I was working on this for EasyYoutube, too, now I am just waiting till the API supports it natively, too (you can already jump to a time but the URI splicing and detection would be cool).

To jump directly to a certain time in a video, just add the time stamp with a URI hash

http://uk.youtube.com/watch?v=qie-N8idatc#t=1m54s

They are also detecting timestamps in comments and link them directly. There is a slight problem that YouTube automatically redirects you from www.youtube.com to yourcountry.youtube.com (for example uk), and that breaks these links! I’ll pester my contacts to look into that.

Well done YouTube!