Future networks will be implicit rather than explicit (i.e. no destination site). Twitter is leading the way, but still owns and controls the data and infrastrucutre.

It's all a riff on the meaning of 'open'.

There is 'open' as in 'door' – which is bad for privacy. Expect to see much more granular access privileges for UGC.

Then there is also 'open' as in 'compatible' – which is the key. People will assemble their networks and functionality to best suit their interests/needs. Making all the pieces compatible it the big challenge here.

Finally, as regards the business model, I think it will be some sort of usage-based system, where code and content continue to earn revenues regardless of the context in which they find themselves.