Provided is an example of using Jing by TechSmith to create a 5 minute (or shorter) video tutorial... Jing makes it incrediably easy to create a screen recording, upload it, and to share with others.
The recording can with just one click either be uploaded to ScreenCast.com (you get 2 GB free) or to your YouTube account. The entire video creation and sharing process can be accomplished in 5 - 10 minutes total.
I've used Jing to answer student questions, create short lecturettes, discuss documents with colleagues, and make fun videos to share with family. By using Jing to select the screen region that shows your webcam, you can create a video that includes you (and/or family and friends); by selecting a image application (e.g., MS Paint), you now have a whiteboard on which you can write even as you talk and walk you students through the steps to solve a particular problem. Visit www.techsmith.com to download Jing - which is free.
This tutorial was made by using a camera to record the computer screen.
The free edition allows you to save video as flash and upload to ScreenCast.com. For an additional $15, the pro version allows you to save as .mp4, and also upload to YouTube.