Feature request: bookmarks for timestamps...

On Lynda.com, one of my favorite features is their option to bookmark timestamp marks on videos. I find that actively listening for bookmarkable moments and marking them helps keep me focused when watching videos. I have less of an ability to focus on Treehouse videos, because there's not that feature for active engagement. Maybe I'm just an odd duck in this regard, but it also helps me review videos - I forward to the bookmarked points noted on the bottom of the videos, and it helps me fast forward through "extra explanations" and just move to the shifts in the points of the videos. Moreover, I just really love the ability to listen and interact with the content by noting key points in a video. It'd probably be annoying to implement, but this feature would mean the world to me. I don't know if others could find it particularly useful, but it's the main thing that's stopping me from engaging more actively with the Treehouse content.