Design is important - that means if you can get your information across without 20k fancy graphics, don't worry about the graphics. You might only get 3 or 4 mouse clicks to deliver what your reader wants. If you fail, he or she goes elsewhere. If you are selling a product or service, this should be obvious from your Front Page - like a Buy Button or Link. If you sell more than 2 or 3 items, an Index to the products is essential.
Readers can then rapidly select what they want.
Provide relevant links, descriptions or reviews wherever possible. You need to select top products, services or programs. Regular updates - both via your web site and newsletters. Web Site Promotion - people need to know your site exists. You have to spend money to make money.