The SEO process is a strategic effort to reach the top of the search engine rankings where your potential clients and customers will be able to find you. This process is different from most traditional advertising campaigns because it must adapt to the Internet mentality which is, in fact, different than more common commercialism and consumerism.
When I started online I kept hearing the term SEO, I had no idea what it was and two years later I wish I would have learned SEO from the start, instead of being a slow learner on this topic. For those who don't know SEO = search engine optimization, basically its optimizing your webpage so that it will get higher rankings in search engines, which equates to more people visiting your webpage. And if you have done things right, convert those visitors into paying customers, or whatever the goal of your website is.
People often misspell words when looking for things on the internet, but you can take advantage of this by ranking for those misspellings, your keyword research should look for common misspellings and they should be incorporated into your on-line marketing plan.
The purpose of a website is to communicate with people. You may be selling things, promoting a company or an organization or just wanting to spread the word about you and what you like. So, having visitors to your site is the central task about web activity, and more usual than not this is the main problem webmasters face these days.
There are theories that the big search engines will turn to pay per click (PPC) model, so the search engine optimization (SEO) industry has no future. Indeed, the SEO profession will change drastically within a few years, but the cause won't be the PPC model.