Dive Into^® Web 2.0 introduces the principles, applications, technologies, companies, business models and monetization strategies of Web 2.0. The eBook provides you with Web 2.0 literacy and points you to extensive resources where you'll find additional information. Dive Into Web 2.0, along with the many free Resource Centers on our website, evolved from research we’ve done to build our own Web 2.0 businesses. In the spirit of Web 2.0, we are sharing this research with the community.

Dive Into Web 2.0 is a chapter from our book, Internet and World Wide Web How to Program, 4/e (Prentice Hall, ©2008; order from Amazon.com or Informit.com). By offering this chapter as an eBook, we're able to keep it up-to-date with the latest developments in Web 2.0. Check this site regularly for the most recent version. The eBook version of the chapter contains extensive hyperlinking to 80 Deitel Resource Centers and many other Web 2.0 websites and blogs.

We’ve added numerous hyperlinks to this eBook to enhance your learning experience. For example:

• Key terms (and other relevant terms) are linked to Deitel Resource Centers where you will find additional resources for the topic.
• Mentions of key people in Web 2.0 are often linked to their blogs where you can read their musings on Web 2.0.
• Any books that we reference are linked to Amazon where you can find more information or buy the books.
• The footnotes and the bibliography are hyperlinked to the sources.
• Mentions of Internet and World Wide Web How to Program, 4/e, and of other chapters from the book are linked to the book’s page on our website where you can find additional information about the book—such as the table of contents, downloads, links to purchase the textbook and more.

• The defining characteristics of Web 2.0.
• Why search is fundamental to Web 2.0.
• How Web 2.0 empowers the individual.
• The importance of collective intelligence and network effects.
• The significance and growth of blogging.
• Social networking, social media and social bookmarking.

• How tagging leads to folksonomies.
• How web services enable new applications to be quickly and easily “mashed up” from existing applications.
• Web 2.0 technologies.
• Web 2.0 Internet business and monetization models.
• The significance of the emerging Semantic Web (the “web of meaning”).