What was Web 2.0?
Rich experience? Wikipedia:Web 2.0 "a 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. The term "Web 2.0" was coined by Darcy DiNucci in 1999."