hellogoodbye
'Right, well... today I will... er... right... Oh let's get that screen out of the way... okay, now, today we will see... er, try... (coughs softly) oh, what happened there... wait, right, yeah, well, okay, that should do it... oh er... yeah, now, today I will show you how to er... (takes a sip of coffee) how to er... (shouts off mic: yeah, I'll do that tomorrow, mom!). Okay, let's get going. This video will be about (coughs loudly) er...'

Maybe it is a generational thing, but I am becoming sensitive to people who say "OK now I'm gonna go ahead and ..."  I saw a video last week where the young lady did this "gonna go ahead" thing 7 times in the first 2 minutes.  I couldn't keep watching, it was so annoying.  Don't tell me you're "gonna go ahead".  Just go ahead.  You don't have to ask permission.  We WANT you to go ahead.  Honest.

Youtube has some good stuff but try to stick to things produced by professionals.

I don't know about pros being the ones to listen to. I recall one mastering pro touting the advantage of Monster Cables in mastering.  To me after that he became a joke. 
 
Sometimes its best to not look behind the curtain.  

I like watching the cats walk across the computer keyboards when the camera is rolling, stepping on all kinds of functional key combinations.
 
A little editing would go a long way.
 
Comic critter relief, 
 
Bob Bone
 

hellogoodbye

dmbaer
Yes, there's a massive amount of material on youtube, but it's largely luck-of-the-draw.  The problem is finding what's good amongst all the less-than-worthy-of-your-time material.
 
A better solution, if you've got a hundred bucks and a little patience, is groove3.  They have a good number of professionally produced videos that are well worth taking the time to watch.  They have a sale every now and then (at least twice a year, I think) that gives you a one-year all-access pass for $100.  Money very well spent, IMO.

I agree with the YouTube comment. 9 out of 10 video's suck. People who mumble something like 'Right, well... today I will... er... right... Oh let's get that screen out of the way... okay, now, today we will see... er, try... (coughs softly) oh, what happened there... wait, right, yeah, well, okay, that should do it... oh er... yeah, now, today I will show you how to er... (takes a sip of coffee) how to er... (shouts off mic: yeah, I'll do that tomorrow, mom!). Okay, let's get going. This video will be about (coughs loudly) er...' And this goes on for 45 minutes. And in the end you usually have learned nothing new. Yeah, most YouTube tutorials suck big time.
 
As an alternative for Groove3 (in case you want to mainly learn about Sonar): one of the best video's ever imho is SWA's Complete Sonar X2 Tutorial. It's REALLY complete and very well done. 

The Groove3 videos are generally great but some of them are of variable quality. I like some presenters better than others. There are a couple of them who don't seem to explain things very well. I watched one where the guy was mixing some drums and the guy was saying : "Next, the snare. We'll just fire this compressor up....and set that there...and set that there....and set the attack there....and the release about there.....great. Now the kick....." I think my favorite is Eli Krantzberg, the guy who does the Sonar videos among others. He speaks very clearly and seems to have a good sense of what the student needs to know. 

sharke
The Groove3 videos are generally great but some of them are of variable quality. I like some presenters better than others. There are a couple of them who don't seem to explain things very well. I watched one where the guy was mixing some drums and the guy was saying : "Next, the snare. We'll just fire this compressor up....and set that there...and set that there....and set the attack there....and the release about there.....great. Now the kick....."

I saw that Groove3 video too. Well, for a few minutes and then I closed it to never open it again. It was supposed to teach you how to mix but all he did was show you how he mixed his project, only by giving you the exact settings for the effects he used without saying once why... totally and utterly, utterly, utterly, UTTERLY useless. And that was one you even had to pay for!
So no, it doesn't necessarily have to be a 'pro' who made the video...

I have to agree on that Master Class video's quality.  No explanation of why a whole bunch of settings were chosen.  I did not bother to watch the remaining videos that made up the series.
 
Bob Bone

While we are at the subject of video's and specially bad ones about mixing: are there any real GOOD video's about mixing? I have 'Mixing Secrets' by Mike Senior (not read it yet) but I would also like a good (or excellent!) video about it all.

I suppose when I said "professional" I should have qualified it.  I just meant you won't get a lot of technical information from a video with 4 views made by a kid in his room and with a long introduction like "Yo, yo, your boy J-Q here.  How you doing? I'll be making beats witch yall after I give a shout out to Mario..."
 
I agree with the thought above that tutorials that are centered around a specific song are less useful than those that address general issues like 1-notching out EQ space for different sounds, 2-gain staging, 3-controlling the low end, 4-fixing sibilince, 5-creating a powerful rhythm section that doesn't bury the voice, 6-stereo imaging, 7-vocal effects, 8-EQ bands and Q, etc.

I'm reading Roey Izhaki's "Mixing Audio" at the minute (got the e-book cheap from the link I posted above) and I have to say its one of the best textbooks I've ever read. After having spent a year at this audio game I felt ready to tackle a more thorough, technical text on the subject and this is perfect. I'm learning so much. It's the perfect compliment to Mike Senior's book - the two of them are a winning combination IMO.