I'm looking at using Moodle to replace two systems we are currenly using. One is a set of online courses with was originally developed in Dreamweaver. The other is a social networking platform for the community services industry in Queensland, Australia which we have outsourced to a third party.
I think both system would work fine in Moodle but they are sufficently different to require separate sites.
However, to keep things as easy as possible for my users, I'd like to have a single sign on and common profiles across the two sites.
What would be the best way to achieve this? I've read that you can set the second site to authenicate against an external database which is the first site. I've also seen that MNet is an option. Or would it be better to set up an LDAP server and have both sites authenticate against it?
Or should I just use one site for both applications?