I was giving advice to a friend the other day about ways to market her site. She is selling a digital product that is not something you impulsively buy. It takes a bit of thought before a sale is converted. Naturally, once someone visits her page, she wants them to remember the page and come back.

The best way to make that happen is with a newsletter. If you have a form to capture email addresses of people who are interested in your product but not ready to buy right now, you can convert them later with a newsletter. A newsletter reminds them about your site and allows you to communicate with them.