I saw this once and was immediately turned off by the videos. Not only is it harder to go to a specific place and look at things again, but as someone with hearing problems, videos without captions are an immediate deal-breaker for me. I really wish the web wouldn't turn toward video instead of written material; one of the reasons I've enjoyed the web so much is its focus on reading instead of listening.
+1. Plus the speed of reading is many times higher than the speed of speaking/listening. Also, videos often cause me to space out after a few seconds and do something else, thinking, "I'll listen in the background." This usually doesn't work.
This is the start-up field I currently have the biggest interest in. Right now, I am using Codelesson, and while the course I am taking has yet to start, it shows some interesting promise - the biggest of which is the names of the people teaching the courses and the badges awarded to your public profile for completing them.
The toughest nut to crack, to me, is convincing potential employers of the importance of the courses, and what they - and the gamification badges - tell about the user.
I am trying to think of ways to leverage services like these for (extra) resumé-building, at least for people with little hands-on experience in start-ups and companies. Just look at [Facebook's puzzles](https://www.facebook.com/careers/puzzles.php).
It's difficult to gauge skill and qualification, which applies both to finding some metric for the usefulness of all these courses and to the people who complete them (and in the way they do it).
