Used for:

• User-generated media

Broader term:

• Communication

Narrower terms:

• Blogs
• Computer bulletin boards
• Online chat groups
• Online social networks
• Podcasts
• Wikis (Computer science)

Related term:

• User-generated content

Social Media

Social media are the forms of electronic communication (as Web sites for social networking and microblogging) through which users create online communities to share information, ideas, personal messages, and other content (as videos). (Source: http://www.merriam-webster.com/dictionary/social%20media)