Lulu.com - Self Publishing - Free
- A software and publishing (books, music, multimedia) marketplace, which enables writers and developers to create, distribute and sell their product in their own language without a middleman. Founded by Bob Young of Red Hat fame.
Packt Publishing Book Store
- Packt is a unique IT publishing company with a focus on producing cutting-edge books for communities of developers, administrators, and newbies alike. There is a wide selection of open source books for purchase plus articles and tutorials available free online. This company has instituted an Open Source Project Royalty Scheme which will provide sustainable revenue for the projects they publish on.