I like to do all the content and videos myself, this way when people come across my content they know it is quality and wont "raed sumthin liek tihs"
Also a great way to edit your own work is 'know' there is mistakes in it, I usually tell myself there is 25 mistakes and I have to find them, though my work usually has 0 mistakes first time through because I'm pretty careful.
I think when I get really really big I will hire a team of people and pay them really well so the content stays error free and they enjoy writing for me.
I'm still currently learning/teaching myself programming and design so I will eventually have to outsource absolutely nothing, of course until I become big enough to need a staff group!
What do you do?