Other organizations

Arkansas

International Association of Business Communicators (IABC), Arkansas Chapter (link)
Society for Technical Communication (STC), Arkansas Chapter (link)

Louisiana

International Association of Business Communicators (IABC), New Orleans chapter (link)
Society for Technical Communication (STC), Louisiana Satellite Chapter (link)

New Mexico

Society for Technical Communication (STC), Kachina Chapter (link)
Society for Technical Communication (STC), The Border Network (Las Cruces/El Paso) (link)

Oklahoma

International Association of Business Communicators (IABC), Central Oklahoma (link)
Society for Technical Communication (STC) Oklahoma (link)

Texas

Society for Technical Communication (STC) Austin Chapter (link)
International Association of Business Communicators (IABC), Brazos Valley Chapter (link)
Society for Technical Communication (STC) Lone Star Chapter (link)
Association of Authors and Publishers (AAP) (link)
International Association of Business Communicators (IABC) Houston Chapter (link)
Society for Technical Communication (STC) Houston Chapter (link)

Outside the chapter area

American Society of Journalists and Authors (ASJA) (link)
Association of Earth Science Editors (AESE) (link)
Board of Editors in the Life Sciences (BELS) (link)
Council of Science Editors (CSE) (link)
National Association of Science Writers (NASW) (link)