Have you heard about Money Saving Mom's new site? eReader Girl is a new site that tells you about free ebooks available each day as well as discounted ebooks.
Jeremy has a Kindle and I use the Kindle app on my iphone. I love adding free books to our collection, plus they don't take up any space on the bookshelf or cause clutter in the house! If you don't have an eReader but would still like to enjoy these free books, Amazon has free programs that you can download, including Kindle for Mac and Kindle for PC, to use for reading ebooks.
Hope this site is a resource you can use to find free and affordable ebooks!