As of today, Microsoft is officially running 3 separate video site with internet video clips. Soapbox is Microsoft's site for user generated video (it's currently only available with a Windows Live login), and MSN Video is a site for professionally produced clips.

Then there's MSN Video's redesigned page, which looks a lot like a cross between the two. It's lacking in user-generated content, but has the look and feel of Soapbox. The primary thing you can do with Soapbox and the redesigned MSN Video site that you can't do with the old site (or YouTube, for that matter), is search for videos without leaving the current page.

That means if you're playing a video in your browser window, it'll keep playing while you search for other videos to watch next.

[via Mashable]