Ecology

For those who study the interactions between organisms and their environment

Health Care

For common people to get help on their personal health problems. They can ask health related problems only.

Astronomy

For astronomers and astrophysicists.

Economics

For economists, academics, college students and those otherwise passionate about the subject.

Human Sexuality

For regular people, teachers, psychologists, doctors/med students, LGBT community, biologists or other professionals that have questions relating to sex, STIs (STDs), sexual orientation, relationships, sexuality or other sex or gender oriented ...

Biohacking

For experts & enthusiasts in the fields of applied human neuroscience, biology, nutritional supplementation, and cognitive enhancement interested in manipulating their biochemistry in search of superhuman physical and mental performance.

Aviation and Aerospace

For pilots, ATCs, mechanics, aero and astro-engineers, students and enthusiasts.

Game Theory

For researchers, academics, and practitioners of strategic decision making

Data

For researchers and journalists who are looking for a particular set of statistical data that is publicly available but is difficult to find with a Google search

Bioinformatics & Computational Chemistry

For bioinformatics and theoretical/computational chemistry geeks

Natural Language Processing

For researchers, students, hobbyists and developers who use natural language processing in their work. For people with questions related to the theoretical aspects of computational methods for language modeling, classification, and analysis.

Mechanical Engineering

For professionals and enthusiasts of the discipline of engineering that applies the principles of physics and materials science to the analysis, design, manufacturing, and maintenance of mechanical systems.

Information Retrieval and Search Engines

For researchers and practitioners who specialize in building systems that help people organize data and extract information from it.

History of Science

For researchers and students of History of Science, Sociology of Science, STS and so forth. A place to get the context of scientific discoveries: The way they were achieved, the influence they had on the society and the way the were impacted by it.

Medical Imaging

For researchers who study the mathematics of medical imaging, Image Reconstruction, and Imaging modalities(MRI, Tomography, Ultrasound, etc)