"Web 2.0" refers to the second generation of web development and web design. It is characterized as facilitating communication, information sharing, interoperability, user-centered design and collaboration on the World Wide Web. It has led to the development and evolution of web-based communities, hosted services, and web applications. Examples include social-networking sites, video-sharing sites, wikis, blogs, mashups and folksonomies.
It's the same web with many advanced features. I doubt there's is software for all web 2.0 features...
