Web2.0 : an introduction

Web 2.0

What is Web 2.0

A Revolution
Before Web 2.0 we looked towards web as an information warehouse.
But now Web is a platform of collaboration, a place where users can share, can interact and can build up on the work of their own as well as that of others’

Revolution continues
Earlier we the users used to be on the receiving end always.
But now we are empowered , we interact and we share and
make WEB a BETTER PLACE TO BE .
In short
It’s Web “For the People By the people and From the people”

More on Web 2.0
Web 2.0 also aims to bridge the gap between desktop and web.
Bringing desktop to web is one more task for web 2.0 developers.
Examples includes
Online instant messaging sites
Online office suits

Web 2.0 Includes
Blogs
Mashups
Social networking
Wikis
And many more

Social Networking
Do I Seriously need to explain it?
Examples are
Orkut
Facebook
myspace

Mashups
With the launch of Web 2.0 come a concept of collaboration.
Sites started to open up their resource for others to use.
Mashup is a combination of such open interfaces from different sites.

Wiki
A site which is user editable
Used to build content in a collaborative manner.
BEST EXAMPLE
WIKIPEDIA.com

Blogsphere
Blog – Web Log
A sort of an online diary
Service providers
Blogger.com
Wordpress.com
Vox.com

Blogsphere
Why important
Coz from being a consumer you become a producer.
The content you write becomes your reputation, your image on the web.
“ I have seen people getting hefty jobs just coz of their blogs”

Web 1.0 Vs Web 2.0
Static websites.
Emails.
Forums.
Basic search engines.
Groups.
Newsletters.
HTML.
JavaScript for validations etc.
Blogs.
Wikis.
Audio/Video Sharing.
Social Software.
RSS/XML/Atom feeds.
Webcasts/ Podcasts.
Open APIs.
Mobility.
CSS Designs.
Visual dynamic effects.
Ajax
Advanced JavaScript for effects.

Examples 2.0
Google Maps. http://maps.google.com
Flickr. http:// www.flickr.com
Orkut. http://www.orkut.com
Meebo. http://www.meebo.com
Digg. http://www.digg.com
Odeo http:// www.odeo.com

Examples 2.0
Visual Maps Mash Up

More Examples 2.0
Flickr. http:// www.flickr.com
Photo Publishing and Sharing Site

More . . .
Orkut. http:// www.orkut.com
Social Networking Site

And More . . .
Meebo. http:// www.meebo.com
Web based messenger client

And More . . .
Digg. http:// www.digg.com
Social news book marking and sharing site

And More . . .
Delicious. http:// del.icio.us
A Social Book Marking Site

And More . . .
Wikipedia. http:// www.wikipedia.org
A Wiki Encyclopedia

And More . . .
Linked In. http:// www.linkedin.com
A Business Networking Site

And More . . .
YouTube. http:// www.youtube.com
A Video Sharing Site

And More . . .
Blogger. http:// www.blogger.com
A Popular Blogging Tool

And More . . .
Zoho Office. http://www.zoho.com
A Virtual Web Office Suite

More Examples 2.0
Delicious. http:// del.icio.us
Wikipedia. http:// www.wikipedia.org
Linked In. http:// www.linkedin.com
YouTube. http:// www.youtube.com
Blogger. http:// www.blogger.com
MySpace. http://www.myspace.com

Technology 2.0
AJAX (Asynchronous JavaScript And XML).
CSS (Cascading Style Sheets).
XHTML.
Open Source Developments.
Lightweight Apps.
Differential Data Transfer.
Server side programming.
DOM Scripting.
RSS/XML/ATOM Feeds.

Ajax ?
Asynchronous JavaScript And XML.
Differential Data Transfer.
Fast Processing and low bandwidth consumption.
Sleek and more handy interface.
Open Source technology.
Growing and spreading rapidly.
Desktop like easy interface.
Famous Ajax enabled apps are :
Google Maps
Gmail

Technically Ajax
Fetching Server Side processed data through Client Side JavaScript.
XMLHttpRequest (XHR) object.

Ajax Examples
Live. http://www.live.com
A9. http://www.a9.com
AskX. http://www.askx.com
Wikimapia. http://www.wikimapia.org
Meebo. http://www.meebo.com

CSS
Cascading Style Sheets.
Used for defining the styling rules of a webpage.

XHTML ?
Stands for eXtensible HyperText Markup Language
Aimed to replace HTML
Almost identical to HTML 4.01
Stricter and cleaner version of HTML
HTML defined as an XML application
XHTML is a W3C Recommendation

Why Ajax is growing so fast ?
Because, its Open Source like Linux, PHP, MySql, Open Office etc.

So ?
Open Source Technologies are developed and spread like anything.
Because, Anyone can develop, improve and redistribute them.
These are self motivated and community powered.
Every single developer can use his/her creativity and strengths to develop the application/technology.
There are no limits and all the freedom.

What are Open Source software licenses ?
Any developer/licensor can draft an agreement that conforms to the OSD, though most licensors use existing agreements like:
• GNU Public License (“GPL”)
• Lesser/Library GNU Public License (“LGPL”)
• Mozilla Public License
• Berkeley Software Distribution license (“BSD”)
• Apache Software License
• See complete list at www.opensource.org/licenses

Open Source Examples
Linux (operating system kernel – substitutes for proprietary UNIX)
Apache Web Server (web server for UNIX systems)
MySQL (Structured Query Language – competes with Oracle)
Cloudscape, Eclipse (IBM contributions)
OpenOffice (open source implementation of Sun’s StarOffice)

Biggest Players in Open Source
IBM
HP
SUN/ORACLE
RedHat
Apache Software Foundation
Mozilla Foundation
Richard M. Stallman
Linus Torvalds
Corporate Non-Profit Organizations Individuals

Why Companies are moving towards it ?
Cost savings
Stability
No forced upgrades
Access and broad rights to source code
Access to skilled community of developers
Ability to define and expedite new development

About the author some shameless self promotion Anant Shrivastava a.k.a. Techno Enthusiast A Workaholic, deeply passionate about GNU / LINUX, OPEN SOURCE, and latest trends in internet technology specially web 2.0 Website : http://anantshri.info Blog : http://blog.anantshri.info Twitter : @anantshri Linkedin : http://www.linkedin.com/in/anantshri For all of my other networking profiles list is here

http://www.nqblog.nl	59
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http://junitalyon.acfe.vic.edu.au	7
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http://web2.pedagogicke.info	6
http://www.thenextweb.eu	5
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Web2.0 : an introduction

by Anant Shrivastava on May 09, 2008

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