Web 2.0 introduced new concepts like RSS, blogs, video sharing that allow users to interact with websites and share content. With Web 2.0, websites use technologies like AJAX and JavaScript to provide dynamic content and allow users to update information in real-time. Popular Web 2.0 sites include Twitter, Flickr, YouTube, and WordPress, which enable sharing content through microblogging, photos, videos, and blogs. Web 2.0 applications are developed using server-side languages like PHP, Ruby, and ASP, as well as client-side technologies including JavaScript, CSS, and Adobe Flex.

1. WEB 2.0 An brief introduction about WEB 2.0 By, Prasad Perumal

2. Introduction to World Wide Web World Wide Web is an information medium which the users can read and write over the internet

3. World Wide Web is a service that operates over Internet just like e-mail, messengers, etc.,

4. Hypertext Transfer Protocol (Http) is the protocol used for sharing the information in the internet

5. Information is displayed in form of web pages

6. Browser is used to show the information to the user

7. Web 1.0 At the earlier stages of World Wide Web, web pages gave only static information

8. Users can just view the information.

9. HTML (Hypertext mark up language) was used to create the static pages

10. Javascript, Dynamic Html where added to give some dynamic content

11. Need for Change ? Pages created using the HTML did not provide much user interaction.

12. Users used the WWW just to view the information during Web 1.0 era

13. Users needed the WWW to be more user interactive and provide instant changes just like there desktop applications

14. WEB 2.0 Web 2.0 is a 'term' associated with web applications that allow interactive information sharing on the world wide web

15. Web 2.0 web sites allow the user to change the content of the web site

16. With the Web 2.0 the database on the web site grows with the user interaction

17. WEB 2.0 Concepts Web 2.0 introduced new concepts like RSS, Mashups, Blogs, Video sharing, etc.,

18. RSS Really Simple Syndication is used to publish frequently updated content in the web pages.

19. User has a application called feed reader to constantly check the changes in the content made to his favourite site

20. WEB 2.0 Concepts contd... Blogs Blog is web page where a user can create his own contents.

21. It is like a personal diary where the user can add contents to the page.

22. Comment can also be given for the contents by other users.

23. WEB 2.0 Concepts contd... Mash Ups Combines data or functionality of different source to form a new service for the web page

24. Youtube videos, Maps from google can be added to ones web page

25. Web 2.0 Sites Twitter: Micro blogging site to update user status which will be updated to there followers

26. Flicker: Site where the user can share photos, etc.,

27. Youtube: Site where the user can share videos

28. Wordpress: Site used to create Blogs

29. Google Docs: User can use various Office related document over the internet

30. SalesForce: An ERP - CRM over the Internet

31. Web 2.0 Programming Server Side: JSP, ASP, PHP, Ruby, Perl, etc.,. These are some of the server side programming languages used

32. Client Side: Javascript, CSS, Ajax, Adobe Flex framework, etc., to create dynamic web pages for the client

33. Open Source WEB 2.0 Programming Opensource Web 2.0 technologies uses some of the opensource softwares and tools to develop the web application

34. Server Side Programming: PHP

35. Database: MySql

36. Web Server: Apache

37. Other Tools: Joomla, Drupal, etc.,

38. WEB 3.0 Web 3.0 is next generation of web applications

39. Web 3.0 is believed to Intelligent web applications using Natural Language Processing concepts and other artificial intelligence concepts

40. The goal is to make online searches specifically to users needs

41. Conclusion Web 2.0 is a term coined to mark a new generation of web applications

42. Web 2.0 increases the users interaction with the application

43. Most of the web sites over the internet uses Web 2.0 concepts to increase the use of there web application

44. ”Internet has become an indispensible part of Human life, web 2.0 acts as a bonding between the user and the Internet”