Answer:
Traditional media is considered to be 'spoonfed' sources of information - a one-way conversation where some media outlet or publisher says "Here you go. This is it." Whereas with social media the power has shifted to the people and the proliferation of user-generated content. It is now a two-way conversation.
Interaction between people is the main advantage of social media, while traditional media is one-way, and is targeted at people without much interaction.