With vacation ending and school staring, this is a great way to make sure you encourage your kids to read, to share, and to donate to the community. There is a fun site for people who love to read and want to trade. The  Book Mooch community exchanges and trades books with others while employing a feed back system to make sure everyone is responsible.  Your only cost is to mail the books and you can use the book rate at the post office. According to their site, in order to keep receiving books, you need to give away at…