"Shortly after Google released Google Web Engine last night, Ryan
Barrett of Google released an application for the platform that
essentially makes Google an OpenID Provider. Check it out here [...]
You can use your Google Account to log into any site that supports
OpenID! Ryan wrote: "If you've talked to me about work during the last
couple years, I've probably downplayed it, resorted to generalities,
or just changed the subject. No longer! We've finally taken the wraps
off our project, Google App Engine. From the docs: 'Google App Engine
lets you run your web applications on Google's infrastructure. App
Engine applications are easy to build, easy to maintain, and easy to
scale as your traffic and data storage needs grow. With App Engine,
there are no servers to maintain: You just upload your application,
and it's ready to serve your users.' Personally, I spent most of my
time writing the datastore, both the backend and much of the Python API.
When I found extra time, though, I had a lot of fun writing apps and
libraries on top of App Engine. I particularly enjoyed writing an
interactive shell, an OpenID provider, and a full text search library.
From the OpenID Wiki: OpenID allows anyone who can run a web server to
run an identity server. Your identity server is separate from your
identity, so you are free to use any identity server that has some
ability to validate your identity and you can change between them at
will. An identity server is sometimes referred to as an identity provider.
If you wish, you can use the services listed below with your own website
as your identifier using delegation.