Selected resources useful for philosophical research.

- blogic: a web logic textbookDavid Velleman, NYU professor.
- Logic in ActionAnopen course in logic developed by Johan van Benthem, Hans van Ditmarsch, Jan van Eijck, Jan Jaspars. The material was written for elementary and intermediate courses in logic, to assist teachers and also intrepid readers engaging in self-study. All material is freely available.
- Logic in Argumentative WritingFrom Purdue OWL.
- The Many Worlds of Logic: A Resource for Logic Teachers and Students of LogicDefinitions, Argument examples, Deduction and Induction, other resources.
- Puzzle Baron's Logic PuzzlesFor fun, and learning.
- Teach Yourself Logic 2017: A Study GuideBy Peter Smith, University of Cambridge.

- Logic Mattersfrom Peter Smith.
- M-PhiA blog dedicated to mathematical philosophy

- Introduction to LogicCreated by Stanford University. Free, or for certificate, can enroll for a fee.
- MIT Open Courseware : LogicA list of logic classes offered through MIT OpenCourseWare.
- Phil 120 - Symbolic Logic from Open Course LibraryProfessors Paul Herrick, Mark Storey, An introduction to symbolic logic with an emphasis on formal logical languages and natural deduction systems of logical proof. Students learn how to translate reasoning into a symbolic logical language and how to prove arguments valid with the precision of mathematics using formal systems of proof.