Web 2.0 features interactive websites that enable user collaboration and content creation, contrasting with earlier passive browsing. Key examples include blogs, wikis, web applications, and social networking platforms, which facilitate user-generated content and social connections. Blogs have evolved into multi-author formats, while wikis promote collaborative editing without a defined owner, and social networks allow users to create profiles and share various types of content.

1. Web 2.0 Applications
SAMIR ZAKHARIA

2. What is Web 2.0
 Web 2.0 site may allow users to interact and collaborate with each other in
a social media dialogue as creators of user-generated content in a virtual
community, in contrast to Web sites where people are limited to the
passive viewing of content. Examples of Web 2.0 include social networking
sites, blogs, wikis, folksonomies, video sharing sites, hosted services, Web
applications, and mashups

3. Blogs
 A blog is a discussion or informational site published on the World Wide
Web and consisting of discrete entries typically displayed in reverse
chronological order. Until 2009 blogs were usually the work of a single
individual occasionally of a small group, and often covered a single subject.
More recently "multi-author blogs" (MABs) have developed, with posts
written by large numbers of authors and professionally edited. MABs
from newspapers, other media outlets, universities, think tanks, advocacy
groups and similar institutions account for an increasing quantity of blog
traffic. The rise of Twitter and other "microblogging" systems helps
integrate MABs and single-author blogs into societal newstreams. Blog can
also be used as a verb, meaning to maintain or add content to a blog.

4. Wiki
 A wiki is a web application which allows people to add, modify, or delete
content in collaboration with others. In a typical wiki, text is written using a
simplified markup language or a rich-text editor. While a wiki is a type of
content management system, it differs from a blog or most other such
systems in that the content is created without any defined owner or leader,
and wikis have little implicit structure, allowing structure to emerge
according to the needs of the users

5. Web Application
 A web application or web app is any application software that runs in
a web browser and is created in a browser-supported programming
language (such as the combination of JavaScript, HTML and CSS) and relies
on a web browser to render the application

6. Social Networking
 social networking service is a platform to build social networks or social
relations among people who share interests, activities, backgrounds or real-life
connections. A social network service consists of a representation of each user
(often a profile), his social links, and a variety of additional services. Social
networks are web-based services that allow individuals to create a public
profile, to create a list of users with whom to share connections, and view and
cross the connections within the system. Most social network services are web-based
and provide means for users to interact over the Internet, such as e-mail
and instant messaging. Social network sites are varied and they
incorporate new information and communication tools such as mobile
connectivity, photo/video/sharing and blogging. Online community services
are sometimes considered as a social network service, though in a broader
sense, social network service usually means an individual-centered service
whereas online community services are group-centered. Social networking
sites allow users to share ideas, pictures, posts, activities, events, interests with
people in their network.