WordPress MU

Hey everyone,

I am working on a site to connect members, alumni, and parents of a fraternity. I want to have separate blogs exclusive to each group. There is a thread that explains how to code it so a new user is assigned to a specific blog, but is there a way to code it so that a user is assigned to a blog based on something they input during registration? I would like the person to be able to select parent, alumni, or member and be assigned to that blog.

Thanks

Did you make any headway on this? Looking for the same kind of per-blog-registration functionality on my site.