Advice
Gallery exhibits
Home page of the Tate Modern handheld computer tour. Explains the system, gives you a taster and some of the evaluation and research done during its development. A great resource and an example other institutions should follow.
John Benfield is New Media Manager at the Natural History Museum in London. He's written a set of guidelines for making museum kiosks accessible.
Gail Durbin describes the how the V & A museum in London used computer exhibits to facilitate learning. This paper goes through the whole process from analysis of visitors' needs, different types of exhibit and surveys on their effectiveness.
The British Interactive group brings together many people in the UK who develop interactive exhibits. Although their website is mainly concerned with mechanical exhibits there's a lot of good general advice.