What I love about ebooks is that they are always with you as long as you have your ebook compatible device (iPhone, Tablet, Kindle, Nook, etc) Great for car trips or stuck waiting somewhere. No more just carrying one book with you, now you can literally carry HUNDREDS!
Here are some to download for the kids! And best of all these are FREE right now!
Amazon keeps a running list of Kindle books you can download for free, so check it out!