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YouTube Video Id

How to figure out the YouTube Video Id

Go to YouTube and search for a video. Select that video so you see the video page (here is such an example of a video page)
You will see in the URL of this page the following structure (you find the URL at the top of your browser-page): http://www.youtube.com/watch?v=5try-TYiuN0
In the example above, the ID is 5try-TYiuN0 (or everything behind v=)