In business, it is pretty much well known that it requires less of a financial investment to keep a customer than it does to acquire a new one. The internet is really no different. Once you get a visitor on your site, or get them wanting to be on your site, it takes less investment to keep them there than it does to go bring in another new visitor. Therefore it is important to do whatever you can to keep acquired visitors on your site helping them move through the conversion process. Everything, that is, short of hijacking their web browser!
One of the easiest ways to lose visitors from your site is through broken or invalid links. You’ve been there before… surfing through a website, looking for things that interest you only to click on a link that brings you to something like this: