Web 1.0 vs Web 2.0 vs Web 3.0

People do web-search for 3 basic reasons:

1. Entertainment
2. Enlightenment
3. Information

Advertisements are 'Moment of relevance'


Web 1.0 vs. Web 2.0

Web 1.0	Web 2.0
Static content provided by the site creator	Real-time content added to site by user
Commercially and technically-based	Socially-based
Dominated by institutions and businesses	Dominated by users

Web 3.0

It is the the future where:

• applications will be pieced together and data will reside on the cloud
• can run on any device from PC to mobile to tablets
• fast and customisable with viral distribution
• will have low barriers of entry
• Intelligent devices connected and interacting

So we need new networks and semantic technologies which have capability to connect to all theses devices.

Semantics will provide secure and efficient access that are pervasive and not location dependent, scalable, interoperable, coherent, consistent and reliable.









Use of AJAX to perform Web 2.0 operations

Without AJAX - HTML page with a form and a submit button which will bring you to another page depending on Success/Failure

AJAX - Asynchronous Javascript and XML

Instead of refreshing when we select an option, it talks to a Javascript function which has a AJAX function which talks to a PHP which finally talks to the database and sends the response back.

References:

1.http://firstmonday.org/ojs/index.php/fm/article/view/2125/1972