Using a SEO expert can dramatically improve the success of your website(s). SEO or search engine optimisation as it is commonly known, is performed by internet marketing specialists that can get you top ten rankings on major search engines such as Google, Yahoo and MSN. SEO is sometimes referred to as not being necessary but it is a crucial factor in online marketing and can produce as much as a 1000% increase in targeted traffic, or even more, depending on various factors that govern the success of search engine optimisation.