London's Science Museum, founded in 1851, houses a number of historical innovations, including the oldest surviving steam locomotive, and a replica of Babbage's Difference Engine. Now, with the rollout of a new API to provide access to information about some of its exhibits, the museum itself has become an example of technological innovation.
RESTful services that underpin many Web APIs today should follow design patterns that make any Web API a good Web API. Such design patterns are all about respecting HTTP protocol specifications, respecting good URI design principles, or taking the full advantage of underlying Web infrastructure for Web API's good performance and scalability. If you are interested in such practices or in a cutting-edge research that may impact the future of Web APIs developments, you should look into the series of workshops on RESTful Design.