I remember that, at that age, I recieved a lot of very nice, but totally impersonal gifts from adult friends and relatives. (Blank journals, stationary, hardcover, classic books etc.) Rare was the gift that had a lot of thought put into it, beyond making sure it was "nice" and "appropriate."
When I want to buy gifts for older kids, I ask their parents what they are interested in. If the answer is too generic, I also ask other kids in that age group what they would want. Usually there is some silly "must have" item for their age group, be it a certain kind of costume jewelry or a brand of really neat colored pens.Then I sometimes double check with the parents, to avoid duplicates and make sure there are no objections.
If you don't know any kids her age to ask, the sales staff at "tween" type stores usually have good ideas. (Limited Too, Claire's, etc.)