There are a number of ways of delivering data in real-time but until recently it has looked like PubSubHubbub, with the backing of Google, was going to be the preferred method. However, the past couple of weeks have seen a couple of interesting developments which could indicate that the developer community may actually prefer HTTP Streaming.
Eleven APIs have been added to the ProgrammableWeb directory in categories including Financial, News Services, and Authentication. Featured APIs include an API for Instagram content publishing for businesses and an API for public records and government transparency. Here's a look at what is new.