The American Psychological Association
APA is the number one source for exploring topics in Psychology. Additionally, they offer resources for undergraduate and graduate students to explore career options, specialization areas, and internship opportunities. You can also become a Student Affiliate and receive monthly newsletters and other information from APA throughout the year.
The American Psychological Society
APS publishes several high-impact journals, holds an annual meeting, disseminates psychological science research findings to the general public, and works with policymakers to strengthen support for scientific psychology. Undergraduate students can become Student Affiliates as long as they are pursuing a degree or its equivalent in psychology at an accredited degree-granting institution
The Cognitive Science Society brings together researchers from around the world who hold a common goal: understanding the nature of the human mind. The mission of the Society is to promote Cognitive Science as a discipline, and to foster scientific interchange among researchers in various areas of study, including Artificial Intelligence, Linguistics, Anthropology, Psychology, Neuroscience, Philosophy, and Education.