Originally Posted by SkiAdcock

Not totally, but this link shows that Marriott has 100 properties that crop up on the Convention-Resort Network:

"Marriott’s Convention & Resort Network is a collection of 100 of the largest convention and resort hotels across the Americas that have united to deliver excellent, seamless meetings year after year. Our world-class convention hotels are dedicated to providing the ultimate meeting experience for attendees"

Marriott properties:

http://www.marriott.com/convention-r...-all-hotels.mi

and this link brings up SPG properties:

http://meetings.spg.com/promo/crn/

I think properties would have a harder time saying they're a convention hotel if they're not listed on the convention network.

Cheers.