Web APIs and mashups are not only of interest to the developer community. There are also research activities that look at how to improve various aspects of API design as well as services' and mashups' implementation and deployment. If you are interested in a cutting-edge research that may influence the future of Web APIs, then you should look at series of workshops on Web APIs and Service Mashups.
The API for the Incorporated Research Institutions for Seismology’s (IRIS) Seismographs in Schools Program returns XML. It retrieves stations, station information, events, event information, and networks affiliated with IRIS.
All the major computing architectures in use today trace their lineage back to the pioneering work of mathematician John von Neumann. Developed from the 1930s through the 1950s, the theories put forth by von Neumann provided the foundation on which the ENIAC, the first general-purpose computer, were based. Subsequently, every system developed since then has relied on the same basic principles to deliver faster levels of computational performance.