Betfair
Betfair is the world's largest betting
exchange. They offer fixed odds betting, much like a bookmaker, but
their customers set their own odds and effectively bet against each
other. Betfair acts as the counter-party to every transaction.
Betfair Australasia is a 50-50 joint venture between Crown
Limited (ASX listed) and Betfair Group plc (listed on the London
Stock Exchange).
Steak runs Betfair's PPC activity.