Fahhhhh!!
Angry Video Game Nerd - Yes, this is one of my time-wasters, but it's also highly entertaining. It's not just ranting, the Nerd actually does reviews of classic gaming consoles and their infamous games (even some movies). Word of caution! He uses a LOT of (strange) profanity!
AVGN Youtube Channel - More of the AVGN, he also does top 10 lists, "official" rants of just about anything, and more movie reviews. He even seems to be getting into directing his own movies.
MrChiCity - A young man from a rough area of Chicago (not far from where I live) gives a "real" dose of his life, and more. One of the most inspiring people I've seen on the internet, he gives hope to his community and I think he's someone everyone can look up to. Oh, and if you watch enough, I'm sure you'll laugh coffee out of your nose.
izismile - A series of "pic dumps". Basically some of the most random and interesting collections of images found over the internet. Also has videos and web games.
When all else fails, Stumbleupon to the rescue!