Web 2.0 refers to next-generation Internet services that facilitate sharing and collaboration on the World Wide Web. It is characterized by user-generated and user-edited content, as well as shared data and participatory experiences. Key technologies include wikis, blogs, photo and video sharing, mashups, and folksonomies. While Web 1.0 focused on static websites with information created by developers, Web 2.0 emphasizes user participation through social media and interactive applications.

1. 1. Web 2.0 ” 2. What is Web 2.0? 3. Web 1.0 vs Web 2.0 4. The information ecosystem then vs. now 5. Technologies used by web 2.0 6. Two Sides of Web 2.0 7. How companies can use social networking for marketing ? 8. WEB 2.0 Multi Platform 9. Comparison 10. Conclusion

5. • DoubleClick • Ofoto • Britannica Online • mp3.com • Personal websites • Directories (Taxonomy) • Screen Scraping • Google AdSense • Flickr • Wikipedia • Napster • Blogging • Tagging (Folksonomy) • Web Services Web 2.0 by example

6. Web 2.0 Top sites

7. The information ecosystem then vs. now Information is scarce Information is abundant Information is expensive Information is cheap Design for consumption Design for participation Dedicated attention Continuous partial attention

10. Del.icio.us is an Example of a Site that Uses a “Folksonomy” to Organize Bookmarks Tags: Descriptive words applied by users to links. Tags are searchable My Tags: Words I’ve used to describe links in a way that makes sense to me A “folksonomy” is a spontaneous, collaborative work to categorize links by a community of users. Users take control of organize the content together. [

12. How it works

22. Comparison Comparison of the Technologies Web 1.0 Web 2.0 Web 3.0 Main Technology HTML AJAX Unknown Something like Active X How sites collect data Email Forms Registered data Speed 56k 2.0mb/s or faster Unknown 10.0mb/s More users means More lag Better Value to user Better value to user Data querying Full text search Full text search Full text search+structured graph pattern query lang

23. Continued… Comparison of technologies Web 1.0 Web 2.0 Web 3.0 Simple definition Interactive web/ visual web Programmable web Linked data web Unit of presence Web page Web service endpoint Data space Data granularity Low Medium high Defining services Search Community(blogs to social networks) find Participation Low Medium high Data referancability Low(documents) medium(documents) High(documents and associated data) Data acessibilty Low Medium(silos) High(no silos)