I think that most people completely misunderstand Internet Marketing. For most, the first thing that would come to mind would be Pay Per Clicks (PPC), or perhaps SEO (Search Engine Optimization), or some may even think of improved organic (non-paid) ranking. Some might think of web rings (blah) or keyword pages (shudder).
This isn't necessarily wrong (except the last two). (Aside: if you are using keyword pages, get rid of them, they don't last long and will send you to 'Google Hell' permanently.) What the people that would give these answers tend to miss is what happens to their visitors once they land on their page.
Is More Vistors the Answer?
Sure, it's great to get vistors, but on average half or more visitors will leave before moving past the first page (known as a bounce rate). Most people give a website about 10 seconds to decide if it's what they're looking for. The point? The people who would give answers like those above are probably focusing on the wrong thing.
People will build a site selling items and then spend thousands of dollars trying to get people to come to their site thinking they will just buy. They forget to structure their site in such a way as to help people find what they are looking for quickly and easily. They don't focus on their potential customers.
Focus on Helping the Visitors You Already Have
Rather than focusing all your resources on getting more hits, turn to the visitors that are already coming to your site. Help your visitors find what they are looking for. 9 times out of 10 (unofficial statistic guesstimated by me) people who click on a PPC are looking to buy, doesn't it follow that they will buy if your site can simply offer them what they are looking for in a way they can understand?
The goal is to make your site focused on your customers. Give them what they want when they want it. Have ample images and relevant information. And make it easily accessible! Not only does this help your organic ranking and thus bring you more visitors, it will help your visitors find what they are looking for. In ecommerce, when a visitor finds what they're looking for, you make money.
In a nutshell: Put yourself in your customer's shoes and help them as much as possible.
If you want to learn more, take a look at my marketing approach, or learn how you can effectively focus on your users more.