In The disruptive Web, Jon Udell describes how a few (non standardized) Web services were aggregated in a way never foreseen by the service providers. It makes very interesting reading and shows some of the potential behind the whole idea.
This is a single archived entry from Stefan Tilkov’s blog. For more up-to-date content, check out my author page at INNOQ, which has more information about me and also contains a list of published talks, podcasts, and articles. Or you can check out the full archive.