I'm creating a cell phone recycling website (similar to cash for gold, except for cell phones) that will allow my customers to mail-in their phones for money. I want to advertise my website and am wondering how I can scale my business? I have about $400 to start with advertising, should I focus on Adwords and purchase a large amount of the coupons? Will I get banned if I only use coupons? What advertising methods do you recommend?