artefaqs - 4:58 pm on Feb 12, 2010 (gmt 0)

I currently have a fairly large forum that I am considering moving to a different platform. What software options are out there? What are the big "industrial strength" professional forum programs?

I'm aware of Invision and vBulletin and phpBB. But I'd like to know what do big companies use when money is no object. Do they just code in-house?