1. Track and analyze your web site traffic.
Most web hosts offer traffic analysis data to their clients, and it is arguably most important tool at your disposal in measuring effectiveness of your website. By taking time to understand this data, you can begin to understand motivations and interests of your audience. Are many of them leaving on one particular page? Perhaps you should make some changes to keep their interest. Are most of them looking at one particular part of your site? Perhaps you should make it a more featured area. Since this data updates on a regular basis, you are also able to gauge effectiveness of any changes that you make. These are most basic examples, as there are many more useful bits of information available- what search terms your visitors are using to find you, what sites are bringing you most traffic, how long your visitors are staying, etc. Maintaining a successful website is an ongoing process, and visitor data is crucial to getting optimum results.
2. Exchange links with non-competing, quality companies related to your industry.
This is a simple but effective way to get quality traffic while increasing prestige of your business. Visitors that enter your site from a link that they find on another site are predisposed to believe that they will find something of value there (if not, why would site take time and effort to link to it?). By making sure that companies you exchange links with are not direct competitors, you are unlikely to lose business. The added benefit to this strategy is that it can give a tremendous boost to your link popularity, which is a major factor in determining how your site gets ranked in most search engines.
3. Write informative articles about your business or products and make them available to online publications and webmasters.
There are numerous sites that will allow you to offer original informational articles for others to publish. Such an exchange benefits you in several ways. First, all of these sites require anyone who is reprinting your article to provide a link back to your site, which can provide highly targeted visitors (visitors that most likely already have a good impression of you from your article). This is also another way to boost your link popularity, which is vitally important to your search engine rankings (as discussed above). Moreover, if you offer a service, a reputation is your most valuable asset. Widely distributed articles can help to establish you as an expert in your field and help you to gain credibility with your future clients.