The document discusses several major social media platforms, including their origins and key features. It describes how Facebook was founded by Mark Zuckerberg and others at Harvard in 2004. It also outlines how Twitter allows users to send and read short messages and was founded in 2006 in San Francisco. Additionally, it mentions that LinkedIn is a professional networking platform founded in 2003, while Pinterest and Google+ are visual discovery and social networking tools respectively. YouTube and Tumblr are also briefly characterized as video and microblogging sites.

1. By
Eduardo Guerra

2.  Social media is the social interaction among
people in which they create, share or
exchange information, ideas, and videos in
virtual communities and networks

3.  Some social-media sites have greater virality
defined as a greater likelihood that users will
reshare content posted (by another user) to
their social network. Many social-media sites
provide specific functionality to help users
reshare content for example, Twitter's
retweet button

4.  Is an online social networking service
headquartered in Menlo Park, California.
Facebook was founded on February 4, 2004,
by Mark Zuckerberg with his college
roommates and fellow Harvard University
students Eduardo Saverin, Andrew McCollum,
Dustin Moskovitz and Chris Hughes.

5.  Twitter is an online social networking service
that enables users to send and read short
140-character messages called "tweets".
 Registered users can read and post tweets,
but unregistered users can only read them.
Users access Twitter through the website
interface, SMS, or mobile device app.Twitter
Inc. is based in San Francisco and has more
than 25 offices around the world

6.  Is a business-oriented social networking
service. Founded in December 2002 and
launched on May 5, 2003,[3] it is mainly used
for professional networking.
 In 2006, LinkedIn increased to 20 million
members.

7.  Pinterest is a web and mobile application
company that offers a visual discovery,
collection, sharing, and storage tool. Users
create and share the collections of visual
bookmarks (boards).

8.  Is a social networking and identity service[3][4]
that is owned and operated by Google Inc.
Google has described Google+ as a "social
layer" that enhances many of its online
properties,

9.  YouTube is a video-sharing website
headquartered in San Bruno, California. The
service was created by three former PayPal
employees in February 2005 and has been
owned by Google since late 2006.

10.  Is a microblogging platform and social
networking website founded by David Karp
and owned by Yahoo! Inc. The service allows
users to post multimedia and other content
to a short-form blog.