Animoto is a web 2.0 tool where the user creates videos from still images, text and video clips. It is a quick and easy site to use and they have unlimited videos for teachers and their students. If you haven't tried this site then today should be the day. You will be impressed with how easy it is to create.
Prezi is a presentation tool and another option for students or teachers other then powerpoint. Give prezi a try in your classroom.
Photo peach is an online tool that allows you to use your own photos to create an animated slideshow. It also allows you to create a simple multiple choice visual quiz. I will be demonstrating the steps to creating your own photo peach.