Read the following before you start complaining that it surely is like all the other video search engines out there: Microsoft Live Video Search has a very interesting preview features. If you hover the mouse over a video it will play a 30 second long preview of that video in the box that was occupied by the video thumbnail.

This is an excellent way of previewing many videos in short time without having to load them on separate pages. This is not only working on video search results pages but also on single video pages when hovering over related videos.

This instant preview feature speeds up the process of finding relevant videos. There are not really any other features worth meaning, Microsoft seems to have kept it as simplistic as possible.