For the past several months Soapbox has been an invite-only beta, but MSN recently opened Soapbox to the public.  If you are not familiar with Soapbox, it's another user-upload video service where you can share your videos with others in the Soapbox community, or you can simply browse videos uploaded by other members.

While it still has some catching up to do with other video services like Youtube or Metacafe, it has some potential, so be sure to check it out.