This week's selection of 'How to' videos shows you how to use popular social networking sites such as Twitter, YouTube and Facebook. How to: tweet, share your video with the world, use social networking to market an idea, find old friends using Facebook and learn about the different forms of social networking.
1. How to use Twitter
2. How to upload a video to YouTube
3. How to create a grassroots movement using social-networking sites
4. What is Facebook?
5. Introduction to social networking