Tyr Fluffy

Hey all, I'm hoping someone can answer this for me, and provide me with a link for "proof" where it says its ok or not ok. I know that L$ cannot be exchanged for real world money except by approved locations and companies, but what is the policy for exchanging Lindens for other non-related offsite currencies and virtual pets (and vice versa)? Specifically looking at the pet sites that allow offsite trading for their pets and game currencies such as Aywas, Chickensmoothie, Wajas, Flight Rising, Etc. Thanks in advance for the help!