First, of there’s a pretty active forum at Indiebride.com (which is a good resource in-and-of-itself), called Intermarriage, where people pretty much just discuss intercultural relationships.  Different races, different religions, different nationalities – it looks like it pretty much all is represented there. The archives are massive too.

Then there’s a livejournal community, called Masala Couples, which focuses on intercultural relationships where one partner is South Indian. Again, the community looks pretty active, and there’s a lot of history to browse. And everyone is super-duper friendly.

Enjoy!