Just finished reading Working with Monsters: How to identify and protect yourself from the workplace psychopath, by John Clarke. It was readable, but not very helpful. Not one to acquire.
Have had Snakes in Suits recommended. Must try and borrow it sometime, see if it's better.
I have a bit of an interest in the subject, as I've had the misfortune to experience what I'd call psychopathic individuals both in the workplace and in my social spheres. You can always change jobs, but the only effective technique for dealing with Psychopaths (legally) is to simply get the hell away from them, so in a relatively small social community, basically you've got to abandon interests and social spheres to be able to do that effectively.
I've had a bit of success with the isolation bubble technique in the past: you ditch anyone who is an associate of the Psychopath. This means you can maintain a certain level of activity in a given community with some safety. Sadly, social spheres are tricky, messy, blurry things. And usually, it's only a few folks (usually those who've been targetted) who acknowledge that the individual is psychopathic, so you're left looking like either an elitist or a paranoid a lot of the time. It's still no guarantee of security, as I've also experienced. And you may be tempted to try and get people to understand, but not only are you fighting an uphill battle much of the time (Psychopaths tend to be deft at social manipulation--if you need the validation of your peers to enable you to resist victimization from a Psychopath, then gods help you), you may also find yourself fighting a lawsuit for defamation.
These days, I'm rather slack with it. Especially with the looseness of association that online social networking brings. Eventually, I expect something Really Bad will happen, and then I'll go into wagoncircle mode, and a bunch of folks who have no idea that certain individuals are actually dangerous nutters (or think I am simply mistaken) will be wondering why I'm not on their flist anymore.