My friend from another virtual pet website drew art of my pet here, can I link to her from the pet profile? Or is that not allowed? If it is not, can I type her username for credit?

If you have a rule question it's best to just file a ticket.

That said, I personally don't see a problem linking to her profile just as a "hey, this is who drew this" kind of thing. The only rule is not advertising other part sites but you can still talk about than so I don't see why you couldn't just link to your friend

Thanks :*