Here are a bunch of books that are licensed under the Creative Commons and for the most part can be freely downloaded, read, and even redistributed (if non commercially). They include books that I already have in dead tree form, like Asterisk: The Future of Telephony or Lessig’s Free Culture, but also include books that guys like Tom might appreciate, such as The Book of FIve Strings: Strategies for Mastering the Art of Old Time Banjo or The How and Tao of Old Time Banjo, or The How and Tao of Folk Guitar. Good stuff.
Thanks! I knew about The How and Tao of Old Time Banjo, but I hadn’t seen the other two, which look excellent, before.