Educreations
The other day I ran across a wonderful free app/service on the iPad that is certainly worth sharing. Educreations ( http://www.educreations.com/ ) allows you to create and share video lessons on the iPad or from your web browser. It is basically your own record-able whiteboard. After you record your lesson, you can upload it to their site and choose to share it with your students, your school, or the general public. There is currently no directory to search for public lessons, but you can provide your students with a course link or code so that they can access everything you upload to your class. While the functions are very basic with this app/service, it keeps it easy to use and share.