Here's email I got after registering.

Thank you for entering the Marriott Virtual Tour!

With over 450 Marriott Hotels and Resorts from New York to Shanghai, we make every business trip a pleasure and every vacation the trip of a lifetime.

Come back to www.marriottvirtualtour.com and play everyday for even more chances to win a trip to Experience Marriott Anywhere in the World, a High Tech Home Theater Upgrade or a $5,000 Dream Bedroom Shopping Spree.

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Regards,
Your friends at Marriott