Like this idea... Campfire creates chatrooms for you to discuss ideas/ proposals/ provide support etc with a selected group of individuals. Although, designed for business - I could see this expanding into personal too if the cost fell. I could see social/ family groupings sharing ideas and generally keeping in touch. What makes it different? Every chat has a permanent URL and they don't require special chat software or networks. It also allows you to instantly share and discuss files with multiple colleagues/ clients/ friends at once across the globe... in real time.
On my watchlist - check it out: Link