What are the most effective 3 communication channels from your point of view?

1. Digital Marketing

2. Mass Communication

3. Radio

I believe they all fall under mass media, that is tele-communications, cyber-communications and also social networking sites such as Facebook, Twitter, etc.

1. Online Marketing - In-App ads/Social Media/Ads on relevant websites/google ads

2. Print Media - Newspaper/Relevant Magazine ads

3. TVCs - least cost effective but with the most reach if done on the right channel during the right times