Are the terms and conditions standardized, or can they be customized by the person contributing the asset? If the former, it might make sense to come up with some sort of translation of the licensing terms. These are great resources, but it might be hard to use them in a game if we don't understand the licensing that they are under.
Another Old-Fashioned Bishoujo Gamer
Supporting creators since 2004
Code > Drama
(When was the last time you backed up your game?)
"The credit belongs to the man who is actually in the arena, whose face in marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; who knows the great enthusiasms, the great devotions and spends himself in a worthy cause; who at the best, knows in the end the triumph of high achievement, and who, at worst, if he fails, at least fails while daring greatly; so that his place shall never be with those cold and timid souls who know neither victory or defeat." - Theodore Roosevelt