- 72 issues of The ModulaTor: Articles about the programming languages Oberon-2 and Modula-2: programming examples, implementation notes, language comparisons, and language design.
- Very good series of exercises to learn Modula-2. Exercise code is available online so that you can focus on the questions. Topics are clearly addresses in independent questions.
- PMOS is a large library of Modula-2 modules, distributed in source form. Its primary purpose is to make it easy to write multitasking programs for real-time and/or embedded applications.