Engines run almost everything today, and the Internet is no exception. Search engines are the beating heart of online commerce.  If you aren't listed well on the search engines, you probably will not do well online in general.

Most people don't know how to get their sites listed on the engines (while others, unfortunately, know too well!). This is a problem for both vendor and customer. You've had the experience of searching for something, finding what looks like a good relevant website on Google, and clicking it - to find a huge links site masquerading as good content squatting there instead.

Why do they get ranked high instead of you? Because they know the secrets of search engine placement.

Search engines look for keywords. These are words placed in strategic spots on your page that tell the search engines what your web site is all about. This isn't like the AOL system of selling keywords; instead, Google and other major search engines are seeking out content on your website relevant to the searches that their customers enter.

For instance, if you sell model trains, your keyword would be "model trains" (okay, it's a phrase, but it works the same way).  You want people looking for "model trains" to come to your website.

So does Google. They make their money on people being able to find what they're seeking. And what they've found is that most people selling "model trains" have that phrase sprinkled liberally throughout their home page, and often on subsequent pages of the site.

If you ensure that "model trains" shows up on your page frequently and in appropriate places, Google will rank you higher than your competitor who does not.

But back to those obnoxious links sites. At one point, they placed high because they did something called "search engine spamming."  They would place those coveted keywords everywhere - having perhaps a 50% mention of the keywords. It turned out to be text like: "The model trains of the model trains go through model trains to model trains." Grammatical, sure. But also utter nonsense.

For this reason, search engines have learned that a really high keyword mention is a sure sign of search engine spam, and they won't list these sites. Don't do it.