To be honest, as much as the internet can be a good place to find a band, when I think about it I have never actually joined a band from it. It's always been through friends or at least friends of friends. However, I went to my first jam night a couple of months ago and I was offered a spot playing in a band that very evening... Even if you're not, they are great fun and you might find yourself playing stuff you'd never have tried on your own. It's good to get thrown out of your comfort zone once in a while! I say try every option available and be open minded, because you never know what might come along!