I have a 9 year old for whom we always need to back 20 or so books when going away as she reads constantly and fast. We have finally given in and bought her a kindle to make our life easier, but we are keen to explore ways to access free childrens books. She is mainly into modern authors and not many of those are available for free. I think she would be more willing to explore older authors if these were recommended by her G&T peers (who might also have kindles)... any suggestions of e-books which are free and best websites to get them off ?