Search Engine Spiders (a program used to categorize the internet) are looking for keywords that match or nearly match related search terms and queries.A keyword is a specific word or phrase a search engine looks for in its index. For example, airplane is a keyword. An Index is a giant list of websites found on the internet. For example, http://www.trade-a-plane.com/ is a website with many keywords in it's pages.
Does that seem easy enough? Just build a website and pick some great phrases and away you go, right? Wrong! Out of the millions of websites their are millions of websites without any traffic. Let's say you have a website about airplanes. But the site doesn't have any traffic.Let me give you a tip:
Think about what kind of website you really want and what kind of keywords you're using to describing content in your website. If your website is about airplanes and you're using general keywords like [aircraft] and [aviation]. How many people actually search for [classic aircraft] when searching the internet? Not many. Most people would search for words like [old fight jet] or [world war 2 airplane] when they want to know something about classic aircrafts. These small details can make a world of difference in keyword strategies and the volume of visitors to your site.