After watching TWIg (This Week in Google) Episode 1 about a week ago found out about Pubsubhubsub. It sounded interesting because it seems like this protocol or something like it is going to be important to Google Wave in the future. I have not had a chance to play with Google Wave yet, but from what I saw its goal is to do everything in real time, including interactions with websites, blogs, forums and comments.

With the current polling syndication system this is impossible to do without polling every website you are interested in multiple times a second. Pubsubhubsub is building on the current syndication spec and adding push notifications to it, thus allowing real time updates from any enabled site with a syndicated feed. In this post I am going to go over a little more of what I have learnt about PSHS and what it does and how to enable it with WordPress.