Mass Media: This refers to any form of media that reaches a large number of people simultaneously. Examples include TV broadcasts, online articles, and social media posts.
Social Media: These are digital platforms where users can create and share content or participate in social networking. Examples include Facebook, Instagram, Twitter etc.
Propaganda: Information (often biased or misleading) used to promote or publicize a particular political cause or point of view. It's often used by governments and political groups.