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walled culture by glyn moody, as free ebooks
How Big Content Uses Technology and the Law to Lock Down Culture and Keep Creators Poor
Building on the Systems Approach that we adopted for our original Computer Networks text book, we are writing a series of "micro-books" that apply the systems lens to emerging topics.
Series of CC-licensed booklets about computer networking tooics.
K2pdfopt optimizes PDF/DJVU files for mobile e-readers (e.g. the Kindle) and smartphones. It works well on multi-column PDF/DJVU files and can re-flow text even on scanned PDF files. It can also be used as a general PDF copying/cropping/re-sizing/OCR-ing manipulation tool. It can generate native or bitmapped PDF output, with an optional OCR layer. There are downloads for MS Windows, Mac OSX, and Linux. The MS Windows version has an integrated GUI. K2pdfopt is open source.
Also, KOreader: https://koreader.rocks
Standard Ebooks takes ebooks from sources like Project Gutenberg, formats and typesets them using a carefully designed and professional-grade style manual, fully proofreads and corrects them, and then builds them to create a new edition that takes advantage of state-of-the-art ereader and browser technology.