Association RDF
pages:- Mayaguez Rotatory Club
- Mayo Fellows Association
- MBRS-University of Puerto Rico Humacao
- Medieval Academy of America
- Medieval Association of the Midwest
- Meteoritical Society
- Mexican Geophysical Union (UGM)
- Microwave Theory and Techniques Society
- Mid-America Medieval Association
- Mineralogical Society of America
- Minorities in Agriculture Natural Resources and Related Sciences
- Minority Affairs Committee
- Minority Faculty Forum of AIChE
- Mississippi State Board of Registration for Professional Engineers and Land Surveyors
- MIT Alumni Association
- Modern Language Association
- Mujeres Grandes y Bellas de State College, PA
- Mycological Society of Puerto Rico
- Mycology Society of America (MSA)
- Nacional Council of Teachers of English
- NADE, National Association for Developmental Education
- National Association of Colleges & Universities Business Officers
- National Association of Gifted Children
- National Association of School Psychologists
- National Association of School Psychologists
- National Association of State Colleges & Universities
- National Commission of Health Education Credentialing, Inc
- National Council of Teachers of Mathematics
- National Geographic Society
- National Geographic Society