If indeed a picture is worth a thousand words then perhaps a screencast is worth a million?  Your viewers get to see your application in action just as if you were giving a live demo (but without any annoying crashes or slow-downs!), they hear a friendly human voice and they get to see your tool solving their problem.  What could be more convincing?

For evidence for how screencasts can double sign-ups, increase sales, reduce your bounce-rate (by 7%) and halve your support costs, see our 4 mini case studies. In this series we’ll look at all the steps you need to take to make beautiful screencasts that explain your software to your users.  It is aimed at anyone selling software or web-applications who wants to increase their user-numbers and sales.

1. Why do you need to screencast?
2. Choosing your screencast software
3. Editing your screencast
4. Why adding music makes your screencast more professional
5. How and why export screencasts to .flv, .mp4, .wmv, .avi and .swf formats
6. Embedding screencasts in your site
7. Get more publicity with sites like YouTube and Vimeo
8. Pro tip - how to make your audio sound like it was recorded by a professional
9. Pro tip - using an introductory animation and PowerPoint slides