Three good online video creation tools:
PowToon is a nice service for creating explanatory videos through a drag and drop process. The videos that you create feature digital paper cut-outs on a colorful background. Think of PowToon as an online tool for creating videos in the style made popular by Common Craft. PowToon provides drawings of people and objects that you can arrange on blank canvas. After adding your narration to the arrangement you can publish your video. PowToon's free version limits your videos to 45 seconds.
Wideo is a service that allows anyone to create animated videos and Common Craft-style videos online. You can create an animated video on Wideo by dragging and dropping elements into place in the Wideo editor then setting the sequence of animations. Each element can be re-used as many times as you like and the timing of the animation of each image can individually adjusted. Wideo's stock elements include text, cartoons, and drawings. You can also upload your own images and audio files to use in your videos.