Google is preparing a new bit of technology to help the company index the Web even faster. The company is going to be using a new publishing/subscribing protocol, dubbed PubSubHubbub. Let’s get our geek on and figure out what we can from this.
PubSubHubbub … that big, long name pretty much sums up what it’s for. It’s a way for publishers (pub) and subscribers (sub) to communicate via a central repository (hub).
Currently, when publishing via most modern content management systems, a signal is sent out to the Web letting search engines and other services (like feed readers) know that new content is available. This is called a ping.