Social Psychology Key Figures. 1  Allport (1920) â Social Facilitation. 2  Bandura (1963) Social Learning Theory. 3  Festinger (1950) â Cognitive Dissonance. 4  Tajfel (1971) â Social Identity Theory. 5  Weiner (1986) â Attribution theory. 6  Milgram (1963) â Shock Experiment. 7  Haney, Banks, Zimbardo (1973) â Prison Study.
Founded in 2012 by two Stanford students, Snap is the Los Angeles-based technology and social media company behind messaging app Snapchat.
Snapchat is a photo- and video-messaging app. It launched in 2011. Snapchat is unique in that all photos and videos only last a brief amount of time before they disappear forever, making the app ephemeral in nature, though you can take a screenshot of snaps to save them in picture form.