Microsoft Bing Search added to its video search user interface the ability to drag and drop videos into a box to create your own playlists. If you search for videos in Bing Search and click on the videos tab, on the bottom left corner a playlist button will show you how to add videos to your playlist to watch later.
Frank Sandtmann sent me this and I am able to replicate - it is a cool feature that I have not seen before. Frank finds lot of cool new goodies in the search results.
Here is how it looks:
Just drag the video results one at a time onto the playlist button:
And then to watch them, click on the playlist button and you are taken into a player that plays your videos:
Forum discussion at Twitter.