Room to Read is a non-governmental organization founded by John Wood, author of the must-read Leaving Microsoft to Change the World. They have a long list of accomplishments including thousands of libraries and schools built, programs to provide education to girls, and computer labs throughout the Himalaya (where they got started) and all over the world. Room to Read’s website lists a number of volunteer opportunities, most of which are domestic based (starting a chapter, organizing a book drive, etc.). They also have a few paid overseas opportunities. Read John’s book to get an overview of the inspiring history of this movement, then hit their website and get involved.