ConvertMyTube allows users to convert online YouTube videos direct to PC, iPod, iPhone, PSP and Mobile.

A simple yet effective tool that can be used freely.

In general terms, all users have to do is cut and paste the corresponding YouTube URL into the provided box and hit the “Convert & Download” button. It is really as easy as that.

Note: The one aspect that can be modified is actually the one that should not be bypassed, namely the file extension. It enables users to convert the YouTube file so it's viewable in different setups (like PCs and Macs) and devices (like iPods and iPhones). 

It also allows practitioners to download videos for use withing their teaching when their organisation blocks access to YouTube.

Try it out at http://www.convertmytube.com/.