I'm very careful whenever I'm connected to the web. I've taken the advice from other mac fora (non-pinoy) of installing PeerGuardian. After all, they say, it wouldn't hurt. But I really don't know. I don't even know how effective it is. I see notifications from Growl once in a while saying it's blocking something. Can philmuggers share their experience with the software? Does it work for you?