For a small one off fee of £299 you can be in control and update your own content just like you would with Facebook. Adding images and refreshing content will will not only keep your online visitors up to date the search engines will class your website as being organic. Plus no more cost to pay web designers.
All websites should really have a blog/news page to keep visitors up to date. WordPress is the best platform on the market and Google seem to like them. This can be integrated into your website for a small fee.