Everything that's great and everything that's frightening about the Internet can be summed up in a single word. Zaba. That's Zaba as in ZabaSearch.com, a so-called people search site that allows you to quickly track down the whereabouts of just about anyone, free of charge. There are already numerous people search resources online, varying widely in reliability and fees. (There's also an interesting story about the people behind ZabaSearch and the notorious mass suicide in Southern California involving the Heaven's Gate cult. But we'll get back to that.) What makes ZabaSearch great is that, at no cost, it quickly and...