Spectronics is a company that specialises in assistive technologies and technology for students with special needs. Although the iPad is not their only focus they have recognised the great potential that the touch device has in this area. This is an well designed site packed with resources and teaching guides together with loads of links for additional information.
These guys do their own comprehensive reviews of appropriate apps as well as provide multiple links that also provide extensive reviews of apps for special needs. Spectronics have also developed the most fantastic Handout - Introduction to the iPad 2 in Special Education. This handout is overflowing with further resources and links to provide parents, teachers and institutions with all the information they would need to implement a iPad program.