What is the application type established for online mass collaboration?

The application type established for online mass collaboration is social media. Social media platforms are designed to facilitate interaction and engagement among large groups of people, allowing them to share content, participate in discussions, and collaborate on various projects or topics in real-time. These platforms can include features such as posts, comments, likes, and sharing functionalities that enhance collective communication and cooperation.

In contrast, while discussion forums focus on specific topics and project management tools organize team tasks and timelines, they do not inherently promote the same expansive level of interactivity and community engagement as social media. Video conferencing software enables live face-to-face communication but is generally used for meetings rather than broad, open collaboration among the masses. Thus, social media stands out as the most fitting type of application for facilitating online mass collaboration due to its versatile communication capabilities.