Kenny, when building HFS' keep in mind that you will be competing for a spot on link lists with submitters who are forced to follow rules. Therefore, the closer your HFS' comply with the link list rules, the more likely it is to be listed. You can see what I think is the minimum standards for getting free hosted sites listed by
clicking here.
One of the most common mistakes sponsors tend to make is that they do not include a title/name for the site and many even name the site the same name as the paysite they are promoting.
Also, for each HFS you should write a decent description and make it easily accessible to webmasters.