Hmmm...
I dont find myself loling much around the web, but if I use it must be because: 30%, either me or someone said something funny. 70%, either me or someone said something stupid. So, most of the time I use "lol" it's because I'm actually trying to be mean :badsmile:
In fact, I really prefer to use this smiley: :laugh:, and really, more than laughing I'm just smiling at something funny. When I really want to show that something just made me laugh, then I use jajaja, or hahaha or the same thing with more jas or has or the same thing with capslock, etc, you get the idea. Too bad most of the times I actually laughed at something were msn chats.