I think Twitter is more like a protocol than a website; and frankly it's too important at this point to be left in the hands of Twitter Inc. I'd love to see a serious discussion about making it a community-owned standard on the same level with TCP/IP or SMTP. But I guess that could never happen in a free-enterprise-obsessed world -- unless, perhaps, Twitter proved itself to be such a bad steward that its users demanded some kind of "nationalization."