Web 2.0 refers to a second generation of web development and design that facilitates sharing and collaboration on the internet. It is characterized by services that get better the more people use them, consume and remix data from multiple sources, and that empower users to create and edit content in a format that allows easy mixing and remixing by others. While difficult to precisely define, Web 2.0 focuses on harnessing collective intelligence, openness, network effects, and user experiences delivered through the browser as a platform rather than traditional software.

1. Web 2.0 ... Huh?! Leigh Dodds, Engineering Manager, IngentaConnect [email_address] 23 rd May 2006

2. A Definition?

4. Web 2.0 is the network as platform , spanning all connected devices; Web 2.0 applications are those that make the most of the intrinsic advantages of that platform: delivering software as a continually-updated service that gets better the more people use it, consuming and remixing data from multiple sources, including individual users, while providing their own data and services in a form that allows remixing by others, creating network effects through an " architecture of participation ," and going beyond the page metaphor of Web 1.0 to deliver rich user experiences . Tim O'Reilly, “ Web 2.0: Compact Definition? ”

5. Lets continue looking...

7. Barb Dybwad, “ Approaching a definition of Web 2.0 ” The Social Software Weblog

9. Dion Hinchliffe, “ Review of the Year's Best Web 2.0 Explanations ” Web 2.0 Journal

10. Web 2.0 = Ineffable! Web 2.0 = Ineffable! Or...maybe it's nothing more than...

11. ...A Bubble? A Bubble? ...A bubble? ...A Bubble? ...A Bubble? ...A Bubble? ...A Bubble? ...A Bubble? Photo courtesy of brokenchopstick

12. " ... the lack of a crisp definition is a feature, not a bug . And as the world shifts from the limited variety of bottlenecked distribution to the infinite variety of open distribution, there will be more examples of phenomena that are hard to define but are nevertheless real and true. The future is increasingly heterogeneous, not homogeneous. One size doesn't fit all. " Chris Anderson, “Web 2.0 and the Long Tail, Part 2” The Long Tail

13. So, forget the definition Lets look at the trends What's actually happening?

15. Social Trends Spread of Broadband Increasingly ubiquitous connections A generation of “web natives” Living on the web Social networking; blogging; instant messenger Create, not just consume Some hard lessons about data ownership Don’t steal my data; don’t lock me in

16. Business Trends Exploit the Long Tail At internet scale even niche communities are very large “ We sold more books today that we didn't sell at all yesterday, than we sold today of all the books that did sell yesterday.” Amazon employee quoted on Wikipedia Success of web services No need to own the user interface. It's your data that they want Users can enrich your data “ Harnessing collective intelligence of users” Review and Recommend; Social Bookmarking; Folksonomies

17. Technology Trends The Power of XML Easier to exchange and process application independent data Agile Engineering Incrementally developer your product; short release cycles Continually adapt to user needs “ The Perpetual Beta” Maturation of the browser XHTML, DOM, CSS, Javascript Browser as platform, not just document viewer

18. Web 2.0 Technologies

19. CSS Content with Style

26. RSS : Content Syndication

32. Web Services: Open Data

33. Web Services Publish Data Not Pages Remember: its your data that they want, not your user interface RSS feeds are web services, too “ Mashups” Remix Data to Create New Applications 184 Web services listed on ProgrammableWeb.com Photo sharing; calendars; messaging; blogging File storage; ecommerce; advertising; search

34. AJAX (Asynchronous Javascript and XML)

35. AJAX Dynamic User Interfaces

46. MAP API EVENTS API IMAGE API

47. Summing Up

48. Summing Up Web 2.0 hard to define, but very far from just hype Culmination of a number of web trends Importance of Open Data Allows communities to assemble unique tailored applications Importance of Users Seek and create network effects Browser as Application Platform Huge potential for new kinds of web applications

49. Links and Contact Mail Me : ldodds@ingenta.com Get the Slides : http://allmyeye.blogspot.com Browse the Links : http://del.icio.us/ldodds/alpsp-2006-03