Well OK, not a TOTAL waste of time, but you can definitely burn quite a lot of time on this site..

http://www.youshouldhaveseenthis.com/

No blaming me if you get tossed out of work for doing “excessive viral marketing research”

Most of the time string theory just makes my head hurt, this helped a bit..

I will admit that I am a sucker for viral videos. I probably waste more time on the net watching these little gems than most other online activities. I found this one a while back and can’t stop re-watching it. This also has led me to create a new category, appropriately named…junk.