Several professional nonprofit organizations are dedicated to software, software testing, and software quality assurance that may be of interest to you. Their websites provide details on their specific area of coverage:
The Association for Software Testing (AST) at www.associationforsoftwaretesting.org is a nonprofit professional service organization dedicated to advancing the understanding and practice of software testing. They hold an annual conference and frequent workshops. Their archives make available a wealth of software testing informationemphasizing practice over theory.
The American Society for Quality (ASQ) at www.asq.org publishes journals and articles on quality and administers the Certified Quality Engineer (CQE) and the Certified Software Quality Engineer (CSQE) designation.
The Association of Computing Machinery (ACM) at www.acm.org and its Special Interest Group on Software Engineering (SIGSOFT) at www.acm.org/sigsoft has more than 80,000 members in educational and scientific computing.
The Society for Software Quality (SSQ) at www.ssq.org lists its vision as "To be recognized as the Society for those interested in promoting 'quality' as a universal goal for software."