How to Download YouTube Videos

1st Trick is Download with IDM
The Internet Download Manager had now considerably improved its downloading capabilities with the passage of time. The fastest download manager has now the option for integration with your web browser and any link that you copy automatically gets added in the download URLs.
Surprisingly it’s plug-in is available for most of the web browsers like the Mozilla Firefox which lets you automatically download an FLV as soon as it appears on the screen.
Just one click does the trick. With IDM installed on your system you can use all the other facilities of IDM along with it such as the site grabber which lets you download all the downloadable links on a site which may be software, PDF or video in any format.

The installation of this plug-in is very simple. All that you have to do is have Firefox and IMD installed on your PC and the “IMD CC” which is the integration module for both the programs connects them and the plug-in gets activated by itself when you select the integration option in the IDM and set Firefox as your default browser. This gives you total freedom from searching if a video is downloadable or not, the download link will automatically let you download it.

This is one of the easiest and the quickest ways to download your favorite FLVs from any site, while other software in this category which are available are restricted to access to a very limited ones only.
Even if you don’t want to download a FLV right away but would prefer to do it later, you can save it in your IDM “Unfinished” folder for downloading it later. No other video downloader offers such services and speed as IDM does and that is why IDM has been one of the top most favorite download accelerator and manager.
There's no question that the popular video content Web site YouTube has caught our attention. Since its launch in 2005, the site has grown to attract more than several hundred million views per day, which is an astronomical number in terms of Web traffic. Whether it's your favorite artist's new music video, instructional videos, video blogs, kittens, funny bloopers or stunts reminiscent of "America's Funniest Home Videos," people seem to like short bursts of entertainment, especially when it's just once click away.