Retrocomputing
Q&A for vintage-computer hobbyists interested in restoring, preserving, and using the classic computer and gaming systems of yesteryear
Electrical Engineering
Q&A for electronics and electrical engineering professionals, students, and enthusiasts
Computer Science
Q&A for students, researchers and practitioners of computer science
Ethereum
Q&A for users of Ethereum, the decentralized application platform and smart contract enabled blockchain
Medical Sciences
Q&A for professionals in medical and allied health fields, students of those professions, related academics, and others with a sound understanding of medicine and healthcare-related sciences
Physics
Q&A for active researchers, academics and students of physics
Stack Overflow
Q&A for professional and enthusiast programmers
Philosophy
Q&A for those interested in the study of the fundamental nature of knowledge, reality, and existence
Mathematics
Q&A for people studying math at any level and professionals in related fields
Software Engineering
Q&A for professionals, academics, and students working within the systems development life cycle
Unix & Linux
Q&A for users of Linux, FreeBSD and other Un*x-like operating systems
Engineering
Q&A for professionals and students of engineering
Super User
Q&A for computer enthusiasts and power users
Network Engineering
Q&A for network engineers
Meta Stack Exchange
Q&A for meta-discussion of the Stack Exchange family of Q&A websites
Politics
Q&A for people interested in governments, policies, and political processes
Bitcoin
Q&A for Bitcoin users, developers, and enthusiasts
English Language & Usage
Q&A for linguists, etymologists, and serious English language enthusiasts
Tezos
Q&A for users, experts, and developers of the Tezos blockchain project
Programming Language Design and Implementation
Q&A for designers and implementers of computer programming languages