Excellent points Toon, and I would only like to add that on your site Kimberly you are not using any headings for your sections. Like Toon pointed out, at the very least you should be weighting your H1 tag with solid information that describes the bulk of your page.
Overall though,
SEO is aided big time by good, clean markup that describes your content as best it can. The more you put in, the more you will get out.