I've just submitted a set of multi-part videos, each of which references a playlist that I made on YouTube. The playlists themselves are from my YT account, but the videos in them are not. The idea is to provide consolidated links so that people can see all three parts of each video on VS without going to YT for parts 2 and 3. If this counts as a "self link", I'll change them so part 1 appears here, with parts 2 & 3 listed as YouTube links in the description. What do you think?

Here's an example: http://philosophy.videosift.com/video/Socrates-Consolation-for-Unpopularity