Psychologist Craig Kerley called Second Life "a great practice ground," adding, "One of the beautiful things about Second Life is that, if you get yourself in a situation you feel uncomfortable with, you just hit the power switch, and you've disappeared."
Kerley's brick-and-mortar practice is outside Atlanta, but he also treats patients inside Second Life, through his avatar, also named Craig. He charges a very real $100 per session. He also runs free support groups on issues such as social anxiety.