Jonathan Mayer <jmayer <at> stanford.edu> writes:
I'm suggesting using redirects just during the login flow, not on the first visit. If that proves to be a crummy UX, then you might try a redirect only through wikipedia.org on login or first visit.
Jonathan
Another alternative you might consider: make single sign-on optional. A slight delay in user experience might then be both avoidable when unwanted and more palatable when selected.
Jonathan