If you use a lot of different online services in which you have to identify yourself, supplying an username and password, for sure that you have forgot sometime your login informations for a service that you don’t use often.

And when this happens you start thinking like me, if it wouldn’t be nice if you could have one login for every service that you use, that way you could avoid memory failures.

Now we have OpenID, a free and easy way to use a single digital identity across the internet that solves all your problems.

At the moment OpenID is already being used in a couple of popular websites such as MySpace.

As a developer you can help this project to grow by having support to OpenID in your own projects, you can read about it in here.