YouTube has been adding a lot more social features in recent months. In addition to linking YouTube accounts to social networks like Twitter and Facebook via AutoShare, friend suggestions and easier private sharing options, users can now find the YouTube accounts of their friends on Facebook, Yahoo! and Gmail.

Last week YouTube added another "social feature" list: a feed that pushes the YouTube videos your friends are embedding on Facebook back to your YouTube homepage. This feature is in test mode, but you can experiment with it while it's being worked on: visit this page and connect to Facebook in the area that says "Where do I share my activities?" If you've already hooked this up, you may need to disconnect and reconnect accounts to enable.