SEO stands for Search Engine Optimisation and is effectively optimising your site in such a way to improve its rankings on sites such as Google. Bing and Yahoo. If you have a website and are not aware of SEO then it is certainly something you need to look in to. It may be that your site has been built with little or no SEO meaning it may struggle to get ranked high on the search engines. If you had a site built that was SEO friendly, that may have been great to start with, but over time this will need to be tweaked and new pages optimised to allow your SEO to build.

Getting SEO wrong can actually be worse than not doing it at all as you can find your site penalised and therefore removed from the search engine listings entirely. When doing SEO be sure to use a company or individual that has the relevant experience to carry out the work. You may be able to ask for examples of projects they have worked on to see for yourself if the SEO is working.