Green (Programming Language)*: Type system, Object-oriented programming, Programming language, Garbage collection (computer science), Assertion (computing)

Go (Programming Language): Compiled language, Garbage collection (computer science), Concurrent computing, Programming...

Adele Goldberg (computer scientist): Computer scientist, Object-oriented programming, Programming language

Forth (programming language): Extensible Programming, Stack-oriented Programming Language, Computer , Imperative.

Common Lisp Object System: oriented programming, Lisp, Dynamic programming language, C++, Java...