Who are some good techies to follow on Twitter for cool/fun(ny) stuff?

I believe I follow a fairly diverse group of people on Twitter. That way, it helps me understand the perspective of different people in the community. But lately I've felt like twitter has only been showing me what's bad and unjust.

So I'd like to follow some people who regularly post cool or funny stuff, to brighten up my twitter feed a little.

Some examples:

Cassidy Williams posts these wonderful little videos every once in a while:

Julia Evans makes these explanatory cartoons that teach me new stuff in a quick, visual way: