Google Reader adds Google Talk for sharing
Google Reader has included a "Share" button for a while now, but if you wanted people to actually read your shared listings, you had to direct them to a URL or RSS feed. Now your Google Talk contacts can also see the items you're sharing on their Google Reader page.
Next time you login to Google Reader, you should notice a few of your Google Talk contacts' names hanging out in the navigation panel on the left side of the screen. Google Reader will tell you how many items they're sharing, and let you scroll through their shared item feed as if you have subscribed to it. You can also manage your friends list so that only certain people can see your shared items.
This is a great way to check in with friends to get feed recommendations for websites you might have never visited before, or interesting articles that you have passed by. Or is it Google's stealth social network in the works?