Tim Berners-Lee, the inventor of the World Wide Web, describes Web 2.0 as the idea of the Web being an interactive space where people can collaborate. An example is provided of using the Diigo tool to annotate and bookmark a news article, then blog about it by converting highlights to quotes and including a link. Key characteristics of Web 2.0 include users owning and controlling their own data, and applications that encourage participation and value-adding by users through rich interactive interfaces. However, some criticize that Web 2.0 lacks clear standards and definitions, and that many aspects like user reviews, syndication, and older technologies predate the term Web 2.0.

1. Web 2.0 Ankit Saxena