Microsoft in a blog post on Xbox.com forum announced a "significant update" for Xbox.com in the coming days. The old My Xbox is being superceded by the new “Social” section which lets you see at a glance what your friends are up to and also gives you early access to one of the coolest features coming in the next Xbox 360 dashboard update. Xbox.com users can check out Beacons which lets you mark games you want to play with others, making it easier to find friends who want to play the same games.
The new update also revamped the Video section that lets you browse the Zune video catalog and purchase movies and TV shows to watch later on your Xbox 360, Windows Phone, or Zune media player. Hit the source link below for additional details.