Any one do Live betting aka Sport Trading?

Hey guys, i just found out this exists. you can bet live on sports and its similar to the stock market. Does any one do this? If so, is there a big advantage to this over a conventional sportsbook?

Thanks

[tech]

I used to do it quite a bit, but it is very time-consuming and I don't have the time anymore. If you have the time, it can be very profitable. The key is (as with most forms of sports betting) to go against what everybody else is doing.