WPMU DEV - WPMU offers WordPress Plugins, WordPress Themes, WordPress Multisite and BuddyPress Plugins and Themes.
calibre - Ebook manager, viewer & converter
MAMP - MAMP is the abbreviation for Macintosh, Apache, MySQL, and PHP. It is a reliable application with its four components that allows you to access the local PHP server as well as the database server (SQL).
FBReader - FBReader is an e-book reader for various platforms. Features:
Firefox Developer Edition - Built for those who build the Web. The only browser made for developers.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.