Eurogamer reports that Sony Online Entertainment will be adding the ability to do real money trading
to at least some of their Vanguard: Saga of Heroes
servers. It's the same service they opened for a pair of Everquest II
servers a while back. Quoting:
"The service, offered by Live Gamer, allows players to sell items, currency and characters for real cash through a secure channel, authorised by the game operator. Most real-money trading in MMOs is a 'grey' market that doesn't have the operator's consent. ... Sony Online Entertainment recently said that it had no intention to bring its other real-money trading initiative — the Station Cash item shop — to Vanguard."