[Dartgod]

Go to the websites of all the casinos. They usually have a guestbook that you can sign up for special offers to be sent to your email.

Another thing. If you plan on gambling much, book directly with the hotel and sign up for a players card when you arrive. Use it anytime you gamble and you can often get something off your total bill at checkout. If you book rooms via Travelocity or a similar site, you won't have that option.