Quoting from I, URL:
My first exposure to the concept of a ‘federated identity’, or a digital identity or ID if you will, was when I had to obtain one of the first Microsoft Passport identities in order to access the material I needed to finish my book, Developing ASP Components. I was pleased with the concept, then, because it would give me a way to sign into all the Microsoft sites I visited and only have to remember the one username and password.
I was quite fond of MS tech at the time, and focused almost exclusively on this vendor in my writing. However, if you had asked me, then, whether I would input credit card information and use Passport to sign on….