VIDEOS FOR LEARNING/UNDERSTANDING
Marginal Revolution University: https://www.mruniversity.com/courses/principles-economics-microeconomics
Khan Academy: https://www.khanacademy.org/economics-finance-domain/ap-microeconomics
EconClassroom: http://econclassroom.com/
Economists do it with models: https://www.youtube.com/user/jodiecongirl
VIDEOS FOR REVIEW
ACDC Economics: https://www.youtube.com/watch?v=swnoF533C_c
OTHER LINKS
Reffonomics practice problems: http://reffonomics.com/1.html
EconLowdown (need assignments): https://www.econlowdown.org/index.php?s=42