I have tried a couple of coupon sites and they must distribute my email address, because I get innodated with tons of advertisements. Are there any sites that do not do this? It is not worth it to me if I have to sort and dump tons of email daily.

I don't have an answer for you, but what I do is I created a new email account that I use just for when I sign up for things. I know a lot of websites spam once they get your info so I figured this was the best way to keep my personal inbox clean!