Updating your Content.
One of the questions I ask when we first discuss the website project with our customers is "how will this site be updated"? The internet has changed quite a bit, at one time a static non interactive site was fine. 
Design With Search Engines in Mind
The plan for how the website ranks in the search engines MUST be considered from the get go. We have found over the years that not only is keyword research, and search engine optimization needed from the beginning but it is also essential to how the navigation, structure and focus of the customer is developed..