I have been a huge fan of Youtube since I fell upon the site 2 years ago. Youtube is a great website to post videos you want people to see. You can gain so much popularity on the web if you are able to create a video that is viewed by millions of people. The site is easy to search and you do not have to download anything to view the movies. Categories are helpful to seperate videos and allow you to find what you are looking for quickly. Youtube is something that PE teachers can use in the classroom because you can pull up weight training and fitness exercises on Youtube to give your students a perfect look at how to perform an exercise correctly (Some videos way not be the best so make sure to view the videos before showing your students).