You may have watched a lot animation shorts from YouTube.com. I found most of those clips entertaining more in the sense of teenager taste (lots of smashing, frating and such).
Recently I came across a site which host a dozen of more artistic animation shorts. They are candidates of a animation shorts competition, and I think they deserve you viewing time and vote. So take a lot at http://www.animex.net/audience and enjoy some nicely done animation short by today's young people.