PubSubHubbub has become the standard protocol for real-time RSS and Atom feed subscription and delivery. But not everybody wants to host their own PubSubHubbub hub in the same way that hardly anybody hosts their own website, and why cloud services in general have become so popular. Guzzle Ayup has entered the market to offer a hosted PubSubHubbub hub service.
RESTful approaches to APIs have made them easier to deploy and consume, leading to a recent explosion in the number of available APIs. One byproduct of such growth is there are a lot of APIs offering similar or even duplicate services, but that have very different approaches to delivering their APIs. Cloud computing and social networking are two areas where we’ve seen the growth in APIs. As the number of APIs grow, the need for interoperability increases.