Search Engine Optimisation (SEO) or Search Engine Optimization (American spelling), is the practice of managing a website to make it more Search Engine Friendly. When the content of a website is better understood by the search engine spiders, there is a greater probability of attaining higher rankings in the Search Engine Result Pages (SERPs).
The main focus of any Search Engine Optimization company is to research and develop strategies which will yield the best results in placing websites higher up in search engine result pages. This is not an easy feat, and requires constant research and knowledge enhancement – Search Engines such as Google are constantly updating their ranking algorithm, making SEO an ever changing science.