Everyone loves a good hockey fight.  Especially if it's a bunch of little kids pushing each other and chasing each other around the rink.  If you're lucky enough to be videotaping it, throw in a relevant soundtrack, and you've got the makings of something cute, clever, and ass-kicking that is pretty much guaranteed to be passed around.  Get a site like Digg.com involved and your video winds up getting voted up to the top so it appears on the digg home page, as was the case with Greg's video of his son's hockey fight.  For all the naysayers who've seen one too many hockey fights, you have to admit seeing some kids push and shove bogged down in all their gear definitely scores high on the cuteness meter.  Definitely the sort of thing you paste to a friend in IM and say, hey, check this out. I suppose that's why you see so many people walking around with their pocket camcorders, just waiting for something to happen that they can catch on film.  Kids say and do the darndest things so it helps to have kids.  Also popular are videos depicting the making of the kids; but that's an entirely different story.