The International Encyclopedia of the Social and Behavioral Sciences could take up several shelves, but now we have the second edition (2015) online. Each article is an expert’s tour to both long-standing and emerging fields of study.  Where else can you find in-depth, authoritative introductions to Psychology of Subjective Wellbeing, Internet and Social Media: Anthropological Aspects, or Gays, Lesbians, and Sports?  It’s also a great place to get background information on social science methods and notable scholars.

This edition is an update to the 2001 edition, called “one of the great wonders of the scientific world” in Contemporary Psychology. This new edition expands the scope to cover new topics and to include new authors from universities around the world.