If there's one thing that you'll need to make it to the top search engine rankings - it would be lots of TIME. Yes, SEO takes time.

Aaron Shear of Search Engine Watch has nice tidbits to share regarding driving web traffic in ways you're not familiar before:

E-Commerce Sites
If we look at e-commerce as a market, for example, you could easily have 70 percent of your visitors coming from tail-based traffic. You can easily identify these terms from simple experimentation with your pay-per-click campaigns. Alternatively, if you have a site search engine, make sure you are storing the search queries. These keywords can be very helpful in extending your tail.

Lead-Based Sites
If we examine a lead-based business, the automation model will not work. Yes, you can track the keywords based on your site search engine data; however, lead-based sites typically lack enough content to tag and match keywords automatically. Thus, a manual process must take place, creating custom content pages around the phrases in a logical order that will make it easy for visitors to navigate through.

Cross Navigation
Think about how you can string pages together, whether it be a product page, a SPEC page, or simply an article. Your cross navigation is critical to your rankings, and you can drive an incredible level of importance per each page with an appropriate cross-linking strategy. However, make sure you do not cross link irrelevant and/or useless information. Search engines can identify themes that do not belong together based on the topics and keywords the page contains.