As great as Mobile Safari is, there are times when a web site is formatted poorly, and it is just too difficult to read comfortably on the iPhone. Enter Readability, a free and easy to use bookmarket that will reformat any web site, making it much more enjoyable on your small screen. There are three simple options: Style, which include options like newspaper or eBook; Size, from extra small to extra large; Margin, extra narrow to extra large. After you specify your preferred reading format, add the bookmarklet to your bookmarks. The next time you're browsing a page you simply tap on your bookmarklet and the site is instantly reformatted to your preferred style.