Google Talk Chatback enabled web masters to allowusers to chat with them from the site but Google recently acquired Meebo which provides this functionality though Meebo Bar.
Such interactivity is already possible with so-called "second screen" providers, which are building social experiences on smartphones and tablets that allowusers to interact with friends and content as they watch their favorite shows.
That news comes just weeks after two major other Facebook commerce announcements: a partnership with eBay that will allowusers to fund Facebook credit balances with their PayPal accounts, and a renewed commitment to expanding the program to include new developers.