Youtube has done wonders for lots of people, but frankly, my reaction to the vast majority of videos is that they are largely or wholly content free. Those cases where a visual demonstration actually assists are exceedingly slim (some digital illustration videos for example, but even those don’t necessarily show you what you want). Watching videos of ostensibly informative topics is an exercise in entertainment and almost always a waste of my time. If you have a transcript at least you can jump around to see if it’s got the info you’re looking for. With videos even if you jump around, you’re still pulling down info at the rate they speak (ie slowly). Next time you watch a documentary count the average number of words spoken in a minute. It’s ridiculously low.
It’s something of a farce that for my CLE requirements I can listen to some 5 year out “senior associate” um and arr through some talk at a firm or do some facile online tutorial (are there other kinds?) and get an hour’s credit, but if I read an entire book by an expert in the area or research the cases myself I get exactly 0 points.
Brendan Scott's Weblog 
It’s a little ironic you’re posting this since the main ‘tutorial’ for your GIMP perspective grid plugin is a video. :)
Awww be fair, that’s digital illustration
;)