The information superhighway becomes a two-way street
Blogs: the voice of the people
Twitter: the microblog with the macro impact
It takes a village: social networks
Facebook: the social network that ate the world
MySpace: the social network rock star
Friendster: the social network that started it all
LinkedIn: the social network for professionals
Photo sharing: a picture beats 140 characters
Video sharing: not your father's home movies
Social bookmarking: sharing your favorite links
The social news: all the news you think is fit
Opinion and reviews: would you consider this plumber?
Wikis: getting everyone on the same page
Wikipedia: all the world's user-generated knowledge
Virtual worlds: a different kind of avatar
Location sharing: the who gets a where
Social media and education: teaching the digital natives
Social media marketing: creating buzz with the social web
What's next on the horizon for social media.