[wp-hackers] Single Sign-on

[Pamela Dingle]

Creating the cookies is the easy part.  The more interesting things will be
redirecting login attempts at your blog to the authoritative system, while
remembering where the user was in the blog so you can take them back,  as
well as pushing new users into wordpress when they are created at the
authoritative system.  Some of this can be avoided if you can expect that
the user will always visit the authoritative app before they hit the blog.