The coolest thing about YouTube is the access we now have to guitar stuff. Rig rundowns, guitar lessons, gear reviews where we can actually hear the stuff...and you can see how your favorite guitar players get the sounds they get!
And, of course, the lovely Rebecca Dirks. Although she seems to have disappeared from all the recent Rig Rundowns. I'm sad.
Check out this RR she did with the guys in Living Colour. Not only are they great players, they perform at such a high level while navigating the most complicated setups I've ever seen!