There are several methods for downloading video files, too.  I've listed a few, but note that you can also use some of the same methods to download audio or video files. 

 YouTube Video

Downloading YouTube Videos is pretty simple.  Basically, you can follow this tutorial step by step and learn how to download YouTube video files.  Note however, that this feature really only works if you're using Mozilla Firefox as your internet browser. 

Ripping Audio from Video


Another resource would be http://keepvid.com/.  This site is wonderful.  You can simply copy and paste the URL of the youtube video you'd like to download and select what format you'd like to save it as.  You can even choose to convert it into MP3 format, which automatically downloads the video in audio form.  

 Filesharing and BitTorents

Video files can also be downloaded using mediafire, megaupload, etc. and BitTorents.  It's the same general principle, just type in the name of the movie and follow the steps provided on the Downloading Audio Page

 Screencasts

Screencast-O-Matic is just one of the free ways to record your actions on your computer screen.  The only reason I prefer this method is because it doesn't require you to download another program just to do screen captures.  I will, however, admit that it doesn't really provide the highest quality screencasts.  But it does a pretty good job of serving its purpose for free.  Of the programs that I've downloaded
http://www.screencast-o-matic.com/

 Other Downloadable Video Files


http://www.archive.org/index.php

Make a Free Website with Yola.