There's a fantastic article here about how a web page works. It's good. But I snagged on the first line:
Ours isn't, for instance. It's a page constructed to deliver services.
I sometimes think this is going to be the most important thing we learn. We're building webstuff at scale - but with a different imperative to most of the modern web. How's it going to be different? Do you need, for example, different analytic tools if you're not optimising for clicks?
Maybe that's an answer to Matt's question here:
Perhaps the business models don't exist for a vibrant ecosystem built on HTTP* and RESTful APIs but public service models certainly do. We still have this web - helping it blossom is the fun of it.