Do you know any integration between SMF and any portal like phpNuke etc?
Portal Developments (http://www.simplemachines.org/community/index.php?board=33.0)
Since this is where it belongs now...
There is an excellent Mambo bridge
There is apparently a phpNuke bridge...
OCPortal can link with SMF as can MKPortal...
In addition, you can do many portal-like implementations with internal SMF stuff like Overmind and SSI stuff, like Bloc.