there are plenty more anti-mika group than mika group on facebook
the most funny one has a picture with a piano hanging above his head and a pair of scissors cutting the rope, i saw it long time ago, maybe it's not there now
facebook is not really useful, it's just for keeping contact with people you've met once or twice and you are not going to see them anymore, hehe, well, it's cruel but it's true, and you might miss them once in a while then you log on and use those little applications send them a hug or a facebook gift