Finding and Using Digital Images
Found through SCOTFEICT is this website about Finding and Using Digital Images. It is fairly detailed in parts (eg when talking about digitisation projects and creating image banks at the organisational level), and could also work as a resource for teachers, especially the following sections I think:
> Using images in learning, teaching and research materials
> The use of images to support instruction and presentation
> Practical ways to use digital images in teaching and learning
> PowerPoint: images and exporting to the Web looks handy as well.