My $0.02 is that daily deal sites like this are tough to market, as you're only real ongoing customer base are those who want discounts. The tricky part is that they're a very diverse customer base so you can't base your pitch on what the products are and who should get the message. Like other people here have mentioned - if you had a niche it could make things easier. Ie: if you're providing deals on baking products…
Plus, it'll be very difficult to get repeat business. I run a couple ecommerce sites and repeat purchases / customer loyalty is a major part of sales. If your products don't have a central theme (i.e. target a focused segment), it is unlikely that a customer who bought random product A would be interested in random product B.