1. In the web
Network
Net community

2. Summary
 Facebook
 Wikipedia
 Twitter
 Blogger
 Pb. Works
 Wordpress
 Second life
 Picassa
 Youtube
 Google plus+

3. Facebook
 Is a social networking service. This is use for people who is friend to another
people and they will be talk with these. Users must register before using the
site, after which they may create a personal profile, add other users as
friends, and exchange messages, including automatic notifications when
they update their profile.
 It’s created by Mark Zuckembrg.

4. Wikipedia
 It’s a web based to up a lot of information with more or less types of temes. It’s a free
web encyclopedia it’s based for all the world.

5. Twitter
 Twitter is a social networking and microblogging service that enable it’s
users to send and read and text-based.
 If you have an account you can follow a person you like and do a follow or
an unfollow.
 It was created in March 2006 by Jack Dorsey and launched in July.

6. Blogger
 Blogger is bolg-plublishing service that allows private or multi-users blog
with time-stamped entries.
 All such blogs had (or still have) to be moved to Google's own servers, with
domains other than blogspot.com allowed via Custom URLs.

7. Pb. Works
 Pbworks is a commercial real-time collaborative editing system created by
David Weekly. The company's original name stems from their belief that
"making a wiki is as easy as making a peanut butter sandwich”.
 In 2005, most wiki software was overly complex for a layman to set up and
manage, requiring an extensive knowledge of Linux.
 Together with some programmer friends, Weekly quickly coded the first
implementation of PBworks; the original beta test of PBworks was released
for public comment on 31 May 2005.

8. Wordpress
 Wordpress is a free and open source blogging tool and publishing platform
powered by PHP and MySQL.
 It has many features including a plug-in architecture and a template system.
WordPress is used by over 14.7% of Alexa Internet’s "top 1 million" websites
and as of August 2011 powers 22% of all new websites. WordPress is
currently the most popular CMS in use on the Internet.

9. Second life
 Second Life is an online virtual world developed by Linden Lab. It was
launched on June 23, 2003. A number of free client programs, or
Viewers, enable Second Life users, called Residents, to interact with each
other through avatars. Residents can explore the world (known as the grid),
meet other residents, socialize, participate in individual and group activities,
and create and trade virtual property and services with one another. Second
Life is intended for people aged 16 and over, and as of 2011 has about one
million active users.

10. Picassa
 Picasa is an image organizer and image viewer for organizing and editing digital
photos, plus an integrated photo-sharing website, originally created by Idealab in 2002
and owned by Google since 2004. "Picasa" is a blend of the name of Spanish painter
Pablo Picasso, the phrase mi casa for "my house", and "pic" for pictures (personalized
art). In July 2004, Google acquired Picasa and began offering it as a free download.

11. Youtube
 YouTube is a video-sharing website, created by three
former Paypal employees in February 2005, on which users can upload,
view and share videos.
 The company is based in San Bruno, California, and uses Adobe Flash
Video and HTLM5 technology to display a wide variety of user-
generated video content, including movie clips, TV clips, and music videos,
as well as amateur content such as video blogging and short original videos.
Most of the content on YouTube has been uploaded by individuals, although
media corporations including CBS, BBC, VEVO, Hulu, and other
organizations offer some of their material via the site, as part of the
YouTube partnership program.

12. Google plus+
 Google+ (is a social networking and identity service operated by Google
inc.
 The service was launched on June 28, 2011, in an invite-only "field testing"
phase. The following day, existing users were allowed to invite friends who
were over 18 years of age to the service to create their own accounts. This
was suspended the next day due to an "insane demand" for accounts. On
August 6, each Google+ member had 150 invitations to give out, but on
September 20, 2011, Google+ was opened to everyone 18 years of age or
older without the need for an invitation. After Google+ went public, users
registered to Google+, but those under 18 years of age were unable to sign
up for Google+.
 Google+ integrates social services such as Google Profiles and Google
Buzz, and introduces new services identified as Circles, Hangouts and
Sparks. Google+ is available as a web site, and will be available as a
desktop application and is already available as a mobile application, but only
on the Android and IOS operating systems. Google has launched
an Api platform for developers. Sources such as The New York Time have
declared it Google's biggest attempt to rival the social network Facebook,
which had over 800 million users in 2011.