Microsoft's Larry Hryb (otherwise known as Major Nelson) recently took to a blog post to outline some new features coming to the Xbox website. Starting today, you'll be able to sort through your activity feed and even pick up friend suggestions directly from Xbox.com.
Here's how Hryb broke the features down in his blog post:
Activity Feed: You can see everything on your feed, make text posts, and like, comment on, and share feed items directly from your browser.
Suggested Friends: This feature will help you expand your friends network and find new people to play on Xbox Live with.
As mentioned above, the new features rolled out today, so you should be able to browse that activity feed and expand your friends list right now.
Source: Major Nelson