Web 2.0 refers to second-generation internet-based services that allow users to collaborate and share information online. It is characterized by dynamic and user-generated content, as well as the growth of social media. Examples include social networking sites like Facebook, video sharing sites like YouTube, wikis, blogs, and more. The major difference between Web 1.0 and Web 2.0 is that the latter enables users to create, share, and communicate content without needing specialized technical skills. Web 2.0 tools emphasize collective intelligence, sharing of data through open APIs, and constantly evolving software released through lightweight programming models.

1. WEB 2.0
NITHIN KALLEPALLY
COMPUTER NETWORKS

2. What is Web
2.0?
o It is Second generation of services available on
the Web that lets people collaborate and
share information online
o O'Reilly Media and MediaLive International
popularized the term
o Google is now seen as the torch bearer of the
term by the media
o From a technology perspectiveWeb 2.0

3. oWhen it comes to defining web 2.0. the term
means such internet applications which allow
sharing and collaboration opportunities to
people and help them to express themselves
online.
oIt’s a simply improved version of the first
worldwide web, characterized specifically by the
change from static to dynamic or user-generated
content and also the growth of social media.

4. Web 2.0: Evolution Towards a Read/Write Platform:
Web 1.0
(1993-2003)
Pretty much HTML pages viewed through
a browser
Web 2.0
(2003- beyond)
Web pages, plus a lot of other “content” shared
over the web, with more interactivity; more like
an application than a “page”
“Read”
“Page”
“Write” & Contribute
“Post / record”
“static”
Web browser
Mode
Primary Unit of
content
State
Viewed through…
“Client Server”
Web Coders
“dynamic”
Browsers, RSS Readers,
anything
“Web Services”
Everyone
“geeks”
Architecture
Content Created
by…
Domain of… “mass amatuerization”

5. Examples Of Web 2.0
•Web 2.0 examples include hosted services (Google Maps),Web
applications ( Google Docs, Flickr),Video sharing sites (YouTube),
wikis (MediaWiki), blogs (WordPress), social networking
(Facebook), folksonomies (Delicious), Microblogging
(Twitter), podcasting (Podcast Alley) & content hosting services
and many more.
•So the major difference between web 1.0 and web 2.0 is that web
2.0 websites enable users to create, share, collaborate and
communicate their work with others, without any need of any web
design or publishing skills.These capabilities were not present in
Web 1.o environment.
•Now-a-days, the way web users are getting information has
drastically changed.Today, users use content they are specifically
interested in, often usingWeb 2.0 tools.

6. Web 1.0 Web 2.0
Double Click Google AdSence
Ofoto Flickr
Akamai BitTorrent
mp3.com Napster
Britannica Online Wikipedia
Personal websites Blogging
Evite upcoming.org and EVDB
Domain name speculation Search Engine Optimization
Page views Cost per click
Screen Scraping Web Services
Publishing Participation
Content Management Systems Wikis
Directories (taxonomy) Tagging ("folksonmy")
Stickiness Syndication

7. Web 2.0 Tools-

8. •Major features ofWeb 2.0 allow users to
collectively classify and find dynamic information
that flows two ways between site owner and site
user by means of evaluation, comments, and
reviews.
•
Site users can add content for others to see.Web
2.0 sites provide APIs to allow automated usage by
an app or mashup like it provides location
metadata that can be processed by a simple
browser tool.

9. Features
1.Collective Intelligence- Folksonomy –
Collaborative Categorization
2. Data is the Next Intel Inside-
Data is key and should be shared
3. End of the Software Release Cycle-
Software is in constantly evolving
4. Lightweight Programming Models-
open API/mesh up
5. Software Above the Level of a Single Device-
The Network is the computer

10. Advantages Of Web 2.0:
• Available at any time, any place.
• Variety of media.
• Ease of usage.
• Learners can actively be involved in knowledge building.
• Can create dynamic learning communities.
• Everybody is the author and the editor, every edit that has been made
can be tracked.
• User-friendly.
• Updates in the wiki are immediate and it offers more sources for
researchers.
• It provides real-time discussion

11. THANK
YOU…