Here is the google presentation with with someone explaining each bit.... 58 minutes so I would recommend viewing just the bits you want from the presentation (you know by moving the little circle thingy at the bottom).
Classmill is a free tool that enables anyone to easily create classes using links, youtube videos, images and files. Login and start creating classes right away:
Typito is a good tool for creating simple videos. Typito is designed for making audio slideshows like those you might have made in the old YouTube photo slideshow tool or with Animoto. Typito offers a bit more control over the editing process than Animoto does.