You've polished your sales page over and over again until it's gleaming with benefits. You're getting plenty of traffic. And still - no sales.
(1) People very rarely buy first time.
You must have heard statistics - people have to see your product an average of 7 times before they buy it. When I cast my mind back to marketing e-Books I've purchased, in each case I saw those books advertised for months - on websites, in newsletters - before I bought them.
So if you want to make a sale, you must find a way to stay in contact with your visitors - and bring them back.
The easiest way to do this is to offer your visitors a free subscription to your newsletter.
Another way is to offer your visitors a free autoresponder course that educates them about Product or service you are offering. Create a series of 5 emails about your service or product and put them on an autoresponder that provides automated follow-up.
Getresponse is a free service that allows you up to 20 follow-ups (you specify intervals between each message):
The point here is that if your visitors leave your website without taking anything away (a free version of your E-Book, an autoresponder course, your Newsletter), you've probably lost them for good.
(2) Allow people to feel they already own it.
If you give your visitors feeling of what it would be like to own your product or service, they're much more likely to buy.