There are various online tools to download youtube videos online however Farkie is my preferred one, since it let you download Youtube video in various formats like MP3, FLV, WMP and AVI. Downloading Video is pretty simple and easy just copy/paste the Video URL in the Download bar and hit the Download button and once completed choose your preferred format for the video. Additionally you can also download songs from Myspace and any flash Media that you can listen to offline.