See Cracking Facebook's Dominance: New Cross-Network Commenting Protocol Could Be a Game Changer.
Am all for cracking dominance, Facebook's or otherwise. It is mindboggling that 400 million people needed a new version of AOL to enjoy the web. From that article, this sounds so weak:
You can pretty much find anyone with a few seconds' diligent googling. Why is being in instant, annoyingly close "poke" range of everyone you ever knew from the date of your birth to the present so important to people? I don't get it. (Obviously I am not on Facebook.)