Signing in can be fun!

Having just set up an OpenID account at I was impressed with the account authentication they are using called ImageShieldâ„¢.

Check out a demo at or opening an account at just to experience it.

What struck me was how playful it is, how it must utilise good tagging (which is at the forefront of my mind at the moment because of how impressed I am with flickr – incredibly good hit rate for images corresponding to a city based search – a great example of how well user-based tagging can work) and what a good Turing test it is.

A serious purpose but well designed and fun.

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