Most people when they encounter a problem during development or use of Drupal do a Google search on the topic and end up, after some sifting and speed-reading, with a couple of text snippets that together form an answer. The purpose of this project is to make it easy to build a record of these snippet trails and to share them with the community.
This videocast is a demo movie and not a tutorial, so it's in the first place meant for end-users rather than for developers. If you want a tutorial tell us in a comment.