What is Web 2.0

The most common definition of Web 2.0, was coined by O'Reilly Media in 2004. According to O’Reilly, the term refers to a

« perceived or proposed second generation of Web-based 

services—such as social networking sites, wikis, communication tools, and folksonomies—that emphasize online collaboration 

and sharing among users. » 

« Web 1.0 was commerce. Web 2.0 is people »Ross Mayfield, CEO, Socialtext

Examples of Web 2.0

Skype

Web 2.0 & Business Survey of 406 upper-level executives by Fast forward:• Characteristics of Web 2.0: • 50% mentioned consumer-generated content, collaboration, social networking. • Only 39% knew about tagging• Less than a third identified applications harnessing the network effects

• 79% felt that Web 2.0 would add to their companies’ bottom line• 68% customer relations• About 30% have adopted blogs and wikis• 40% want to establish online communities• 42% are thinking of mashups

Web 1.0

Web 2.0

The Long Tail: Participation

Web 1.0 Web 2.0

The 1% Rule1% Contribute

10% Comment

100% Consume

Charles Arthur, The Guardian (http://technology.guardian.co.uk/weekly/story/0,,1823959,00.html)

YouTube

Database vs. Tags

Database vs. Tags

Shell.com

In/Out

Web 1.0

In

Out

Web 2.0

In/Out

Web 1.0

In

Out

Web 2.0

• RSS/News Feeds• Calendar• Microformats (smart browsers)• APIs (Google maps) • Mashups

Mashups

Mashups

Mashups

Mashups

RSS/News Feeds

RSS/News Feeds

RSS/News Feeds

RSS/News Feeds

RSS/News Feeds

Web 1.0 vs. Web 2.0

Web 1.0• was about companies• publishing• portals• top-down• Britannica• Personal websites• proprietory software• taxonomy• stickiness

Web 2.0• is about communities• participation• RSS• bottom-up • Wikipedia• Blogging• open source• tags (folksonomy)• syndication

Some examples

• go2web20.net• webexone.com• zoho.com •slideshare.net• swivel.com• plazes.com