When we were approached, the CEMCO website did very little. However, it did show basic information such as contact names, plus a list of the members and suppliers. It also had a static map which showed the location of all the members across the UK.
As the members would soon be put into a database for the intranet, we used google maps to display the members on a UK map dynamically - that meant that CEMCO administrators (or even member administrators) could add their new branches and these changes would be automatically reflected on the website map.