Think what you want about Web 2.0, it is an unescapable change in the way the web will grow in the future. It is the convergence of several emerging ideas and technologies that individually wouldn't mean as much but that taken together make a real difference. These ideas are (paraphrasing Wikipedia and isolating the technical points from the business ones):
- "The transition of websites from isolated information silos to sources of content and functionality". This is the "programmable web", which enables a real web or network of applications to share information. It implies the use of open standards such as RSS and XHTML which make the blogosphere bigger than the sum of the blogs.
- "Open communication, decentralization of authority, freedom to share and re-use". This is the community aspect. It consists mainly of user-provided contents (that can range from user comments to fully user-created sites such as Flickr, Myspace or Wikipedia) that the users own.
- "A more organized and categorized content"
- "The resurgence of excitement around the possibilities of innovative web applications"