We all talk about keeping your information in front of your prospect, but its a lot more than that. In your personal relationships the object of your attention may be flattered, but in your business relationships, they know that your attention to them is about business and getting their money. You'll never fool them into thinking otherwise, but you can dazzle them with how your benefits will help them get more of whatever they're wanting. You want to keep in touch in a way that shows you are aware of your prospects needs, wants, desires. Keeping your name in front of them can work against you as much as it can work for you if your messages aren't focused on them getting what they want, so bear in mind that these prospects are human beings with hopes, dreams, needs and strong personal feelings.
People buy emotionally, and justify it with logic.
Your followups need to show that your product can help them get more of whatever they need and want, and you need to keep stating that in as many different, prospect oriented ways as you can. Whatever the reasons, just recognize that most sales are not made on the first visit to your site. Follow up seems to be something that most people do not want to do. It happens all the time. That's very common.