Last weekend in California there was the 2008 DEMO conference. The conference serves as a launchpad for new Web startups. It’s a great opportunity to see what the new thing is going to be.
Over at the GigaOm blog, they boiled down the four biggest themes that came from this year’s DEMO conference. One struck my eye:
Componentization of the web
The web’s full of pieces: static images, YouTube clips, Facebook widgets and Flash plugins. Startups want to let users rework these pieces their own way.
This is exactly what i’ve been saying. When people find a Web site or piece of content they like, they want to be able to take it with them and do stuff with it.
This theme is also why I joined the widget platform company Clearspring.
So if you create online content, how are you allowing your users to grab a hold of and do stuff with the useful components?
Oatmeal Stout - Justin Thorp's blog 
This topic came up at widget dev camp, I know there are technologies out there that make it possible right now (some small hoops to jump through) but I think eventually all sites will just be built so any content can be wigitized/sent to somewhere else.
This reminds me of the “Character 140” group’s use of Twitter to create different websites that have pulled a refined set of content from the larger website.