Most of us know that Internet communities and social networking sites are popular, but how do blogs, podcasts, wikis and companies like Digg and MySpace work? Learn more in the Social Networking section.
One of Web's most explosive phenomena, MySpace grew to 54 million profiles seemingly overnight. Find out what MySpace really is, how it blew past the competition and why Rupert Murdoch thought it was worth $580 million.
What is revolutionary about Second Life is that it's not only legal to make real money from your character's virtual endeavors -- it's encouraged. The exchange of your accumulated virtual dollars into "real" dollars is built into the system.
Social networking and e-commerce may be all the rage, but many internet pioneers originally used the Internet for sharing ideas among large groups of people. Newsgroups were fundamental to early internet communication, and they're still good sources of information today.