InfraGard: InfraGard is an information sharing and analysis effort serving the interests and combining the knowledge base of a wide range of members. At its most basic level, InfraGard is a partnership between the Federal Bureau of Investigation and the private sector.
ISSA (Information Systems Security Association): The Information Systems Security Association (ISSA)® is a not-for-profit, international organization of information security professionals and practitioners. It provides educational forums, publications and peer interaction opportunities that enhance the knowledge, skill and professional growth of its members.
Open Web Application Security Project (OWASP): The Open Web Application Security Project (OWASP) is a worldwide free and open community focused on improving the security of application software.