HEATKEYS

Hogrefe Publishers is a leading publisher of books, journals, and scientifically validated assessment tools, primarily but not exclusively in the fields of psychology and psychiatry, for professionals and researchers. Part of the family-owned Hogrefe...

The American Psychological Association (APA) is a scientific and professional organization that represents psychologists in the United States. APA educates the public about psychology, behavioral science, and mental health; promotes psychological sci...

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

TED is a small nonprofit devoted to Ideas Worth Spreading -- through TED.com, our annual conferences, the annual TED Prize and local TEDx events.

Project Gutenberg offers over 33,000 free ebooks to download.

Internet Archive is a non-profit digital library offering free universal access to books, movies & music, as well as 150 billion archived web pages.

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...