This a directory of open source and commercial software tools for load and performance testing with reviews and resources. http://www.loadtestingtools.org/
Software Testing Resources: Load Testing, Unit Testing, Functional Testing
This web site lists tools, courses, contractors, consultants and other resources for software testing. http://www.testingfaqs.org/
The International Software Testing Qualifications Board (ISTQB) is a not-for-profit association legally registered in Belgium. It is composed of 47 member Boards from worldwide countries. It provides software testing certification and glossary.
The Association for Software Testing (AST) is a professional non-profit association that is dedicated and strives to build a testing community that views the role of testing as skilled, relevant, and essential to the production of faster, better, and less expensive software products. We value a scientific approach to developing and evaluating techniques, processes, and tools. We believe that a self-aware, self-critical attitude is essential to understanding and assessing the impact of new ideas on the practice of testing. http://www.associationforsoftwaretesting.org/