I am going to be teaching an A-level course next year about the 'digital economy'. One of the tasks is to investigate a transactional website and then build the back-end database which might be behind the wesite. it is all very vague, and pupils will be using Access to develop the database. Does anyone have any experience of e-commerce sites, and the databases behind them? Also does anyone know any large companies (e.g. Boots, WHSmiths, Tescos etc) with transactional websites, which have their IT team in Essex/London/Kent/Hertfordshire as it would be very useful for the students to go on a visit to the IT developers. Any help much appreciated!