I have a website (not the one in my signature) that is an ebook sales page. Basically, I want visitors who land on the homepage to STAY on the homepage.... so they'll be more likely to purchase the book. But the site does have a few dozen pages of decent content that's been indexed in google. Right now, it's all linked on the side of the homepage so visitors can access the information easily-- problems is, when they do this, they're off the homepage and no longer interested in purchasing the book. If I move the content links to the bottom of the page.... and make them smaller.... will this hurt my SEO? Just wondering... thanks.
As long as it's internal links, I doesn't hurt. It's different with external links, but internal ones can be placed anywhere you want without negative effects (except on the very top for possible duplicate content issues due to the navigation often being the same on every page).
You should do like I do, when I am selling a product like an ebook then I use the right hand column to constantly display the product and give the opportunity to buy, so which ever page they surf to there is always the reminder of the product