1. Some useful tips

2. Audacity
http://audacity.sourceforge.net/
Free software
Tutorials available on YouTube
http://youtu.be/21wh0iixiDA

3. Audacity

4. Acoustica mp3 mixer
http://www.acoustica.com/mp3-audio-mixer/
Free 7 day tial.
Easy and simple. Add sound. Move sound. Save as a sound file.
Demos at : http://youtu.be/IohOfT2fjE0

5. Acoustica

6. Windows Live Movie Maker
Go to http://windows.microsoft.com/en-GB/windows/downloads/get-movie-
maker
Very simple and user friendly

7. YouTube video editor
Settings
Video manager
http://www.youtube.com/

8. Final Cut Pro
More expertise needed.

9. Slideshare
http://www.slideshare.net/