1. Social Media are Web 2.0 Applications.
2. User Generated Content is the lifeblood.
3. Users create specific profiles for the site.
4. The website fosters social networks by connecting other profiles with one another.
It allowed users to create profiles, write bios, and message others.
After being a juggernaut for years in messaging, it started losing market share to modern day social media sites.
It gave you a "Circle of Friends" that you could connect with.
For the first time, users didn't have to have technical knowledge to participate on the Web.
Brands found a new way to connect with their audiences.