Compiler-related links I recommend:

• http://en.wikipedia.org/wiki/Parsing_expression_grammar
• http://www.chrisseaton.com/katahdin/
• http://www.jetbrains.com/mps/
• http://en.wikipedia.org/wiki/Xtext
• http://research.microsoft.com/en-us/um/people/simonpj/papers/slpj-book-1987/index.htm