According to the Disney Blog, there are some cool meeting spaces at Epcot that you may not know about:
Following a lead for another story, I stumbled upon this website that gives event planners a preview of the spaces available for their parties. The site highlights exclusive spaces in Animal Kingdom, Disney-MGM Studios, Downtown Disney, and EPCOT available to book for your special event. For most spaces they've included a Quicktime VR 360 degree photo of the space and photos. Some also have video.
To see these secret rooms of Epcot, look at the entries for The American Adventure Parlor, The Living Seas Salon, Norway Loft, and Wonders of Life Retreat. Don't miss the Quicktime VR previews for the other parks too. Lots of great stuff the average guest just doesn't get to see.