outside of our monastry there are other centers dedicated to studying the script, and I am sure a great many of our brothers and sisters frequently travel there. Alas, they cannot enter as members of our order and have to join the ranks of another sect as well.

I (as most, I suppose) have a number of Perl-community related login accounts. The ones for Perl Monks and PAUSE are essential, but I had to get another one to vote for CPAN modules (which I hardly ever do as I cannot be bothered to log in most of the time), and I would probably also contribute a little to the new http://www.cpanforum.com/ if I did not have to get yet another account.

Is there any chance for the various people running these sites to come up with some federated identity system that would allow a single sign-on? What are the big hurdles? Technical problem? Lack of a widely accepted implementation (we would want something done in Perl, of course)? Lack of trust? Improved sense of security due to having many accounts of limited power each (although you end up having to give passwords to many different sites, which could become a big problem if you always choose the same one)?

Or is that a bad idea in general?