Dim Dim and Skype

Those are very interesting tools because of the possibilities. You could set-up a conference and videophone between classrooms in the same school and talk about different subject areas/ topics. Better yet, set them up with different schools all over the USA and other countries. Think about the ability to share information between students and teachers. You wouldn't have to have people come into your school to give presentations, not physically anyway. For example; if you were talking about interviewing for jobs. You could set-up a meeting with different employers and students could ask questions.