http://www.freetechbooks.com/compiler-design-and-construction-f14.html http://www.freetechbooks.com/compiler-design-and-constructio... contains links to a bunch

http://www.freetechbooks.com/compiler-design-and-construction-f14.html http://www.freetechbooks.com/compiler-design-and-constructio... contains links to a bunch of open source books on the topic of compilers. Enjoy.