The recent ToS change left some questions as to whether third parties could continue trading Lindens. A subsequent post on the SL Blog seems to equate “unauthorized” with Not Permitted.
The kicker is the emails being sent to the operators of Exchanges. One German operator (Milz Yue) posted on a forum:
As described on the Second Life blog, updated Second Life Terms of Service disallow trading of Linden dollars (L $) on exchanges other than the LindeX.
As operator of a third party to exchange, You Should cease Facilitating L$ trades on your exchange immediately to comply with the Terms of Service. Any virtual ‘ATMs’ or scripted objects in Second Life that are connected to your exchange should therefore be removed immediately.
Please be sure to read the complete updated Second Life Terms of Service and take the steps Necessary to comply and keep your Second Life account (s) in good standing.
Thank you in advance for your cooperation.
That may not be a perfect translation. But, it seems to make it clear, Linden Lab will be the only currency exchange in Second Life.

