OpenSSO/OpenAM alternatives

Question

Warning! I\'m on a bit of a fishing trip here, and I\'m not even sure if the questions that I\'m asking entirely make sense. Please be kind with your responses! :)

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Answer 1

This list might provide a good starting point:

http://en.wikipedia.org/wiki/List_of_single_sign-on_implementations

with JOSSO and Shibboleth springing to mind.