more free e-books on Free Open-Source Software

There is a lot of overlap here, but the corroboration and triangulation can be useful. LinuxLinks has a list of the 20 best free Linux books, in the editor's estimation. Linux.org has a reading list with several good titles on Open Source and Free Software, such as Open Sources, Free as in Freedom, The Cathedral and the Bazaar, and Free for All. Some of the titles on this list look good, too.