As I talk about the BIG VISION for BricaBox, I often find myself repeating a definition for "social content website" -- because that's the scope of our platform, and those are the kinds of sites we set out to power. Currently, my best definition of "social content" is this:
"Websites where a group of people collaborate on a base of content."
While I've thought about including a qualifier like "... using a common format" to the end of that definition, I think it's pretty good right now.
Here are some examples of "social content" sites, so you can see the scope of this genre:
What's your definition of "social content sites"? Have you ever thought of all these sites being under one genre?