Last weekend we added support for a real-time feed notification protocol called pubsubhubbub. What does this mean for you? It means that real-time notifications for Feed My Inbox just got a little more "real-time".

Real-time notification protocols are able to "push" feed updates as they happen to feed readers like Feed My Inbox, instead of us having to check the feed manually every few minutes. Usually feeds that are enabled with a real-time protocol take 1-5 minutes to be delivered, while other feeds can take 5-25 minutes on average.

The two big real-time protocols are RSS Cloud (which we started supporting last October) and pubsubhubbub. While RSS Cloud has the much better name, pubsubhubbub is more popular because all Feedburner-hosted feeds use it. We are currently monitoring nearly 18,000 feeds and growing that are pubsubhubbub-enabled. You can watch this video for more information on how it works:

A possible bug

One thing we have noticed since deploying this update is that some folks are getting duplicate emails. We're working on a fix and made an update as late as today that will hopefully take care of it. Don't hesitate to let us know if you are having duplicate email issues. We'll post any updates if necessary here. Thanks!