Without revealing too much detail... one of our clients happens to be a purveyor of online temptation and, although prostitution per-se may not be paying, the "companionship" model apparently still does sell (if the traffic is any hint).<p>There's also a surprising number of people drawn to the chat model and a major part of their infrastructure is now geared toward concurrent live streams, sessions and sandboxed chat (HTML / JS; no HTML5 WebSockets yet) with by-the-minute or monthly billing.