Simple ways to download Youtube videos

Youtube, the popular video-sharing site, hosts a very huge number of videos. But one of the huge minuses of Youtube is that it does not allow users to download the videos. Hence users need to download videos using many other methods. Like you may use Internet Download Manager, which shows a Download Video button when video plays. The following two methods are one of the simplest methods to download youtube videos.

Suppose I am watching president Obama's Inauguration speech, and I want to download it. So first get the url. Taking this example, the url is:
http://www.youtube.com/watch?v=VjnygQ02aW4.

Ok now edit the url so that pwn or kick comes before youtube. Eg.
http://www.pwnyoutube.com/watch?v=VjnygQ02aW4 or
http://www.kickyoutube.com/watch?v=VjnygQ02aW4.

Now if you put pwn you will be redirected to a new page giving you the download links in .flv and .mp4 fornat. If you had put kick, the options of formats to download are plenty. There is also 3gp included. Have Fun!!