Web 2.0 is how “techsperts” are describing today’s World Wide Web.
The Web has changed from how it used to be. In the beginning, Web content was overwhelmingly created by webmasters and corporate experts—people who wrote content and designed websites for Internet users to read. Internet users, in turn, were mostly passive: reading what was written, learning what was presented to them.
Then came a new wave of Internet applications, applications that encouraged participation, collaboration, creativity on the part of users, and the sharing of information.
Web content today is often user created; Internet users write blogs and upload videos, they share photos and information about themselves, they collaborate to create encyclopedias and to identify the best web resources. Today, you and I are the experts and we learn from each other.
Popular Examples of Web 2.0 Applications
Blogs allow anyone to publish to the Internet.
Mashups allow users to put content from different sources together on one application. A common usage for brokers is to place listings onto Google Maps.
Podcasting allows users to create and upload audio content.
Social Networking site allow Internet users to communicate, interact, and share information. The best current example is Facebook.
Wikis allow many users to collaborate on the same document or share their knowledge on a common website. The most well known example is Wikipedia, the international encyclopedia that has been created by Internet users.
Folksonomies allow users to identify and classify Internet content, making it easy for other users to find what they’re looking for on the Internet. A popular example is del.icio.us.