So I was trying to put into words this idea of open source 2.0. Big things made possible by the maturation of a lot of little things and found a great post
referenced by blogdex.
Ajax isn’t a technology. It’s really several technologies, each flourishing in its own right, coming together in powerful new ways. Ajax incorporates:
If you skipped over the techno speak it just means that you don't have to wait for things to finish before continuing to navigate the site. The result is things like the new Google Maps project. This link
shows a map of my cross street. The neat thing here is that you can drag the map around like you can a window on your desktop. I used to refer to this as Open Source Middleware but it's bigger than that. It's the end result of digital technology and standards. Standards are finally coming together enough to see it happen.