Hypothesis is a web annotation tool. "Using annotation, we enable sentence-level note taking or critique on top of news, blogs, scientific articles, books, terms of service, ballot initiatives, legislation and more. Everything we build is guided by our principles. In particular that it be free, open, non-profit, neutral and lasting to name a few."
"Design your book from start to finish in just a few easy steps, and create beautiful print books, ebooks, and webbooks for any genre. Easy-to-use software that lets you design and produce your book with just a few clicks. Create ebooks and PDFs to submit to Kindle, iBooks, IngramSpark, Kobo, Nook, and more."