Question

Would it be possible to import accounts into StackExchange?

We would like to tie the accounts with the rest of our network, which revolves around vBulletin.

Is this possible by any means?

Answer 1

This isn't possible right now, but it sounds like it might fall under some other Single Sign On requests. See:

http://meta.stackexchange.com/questions/4030/not-possible-to-do-sso-with-a-corporate-intranet-site

http://meta.stackexchange.com/questions/2705/how-can-i-bring-the-authentication-and-authorization-pieces-of-my-stackexchange-s