Social Media Facebook, Twitter, Google+, etc.

What is Social Technology?  Communication tools  Interactive tools  Examples?

Types of Social Technology  Instant messaging  Text chat  Internet forums  Blogs   Social networks

Social Media We Know  Facebook  MySpace  Twitter  Windows Live  Google+  Bebo  Skype

How People Share Content on the Web

Women in Social Technology

Why Women use Social Media

What’s exciting about Social Technology?  90% of Internet users know at least one social network.  An average social user has 195 friends.

Age Distribution on Social Network Sites

Let’s take a look at some of these Social Networks

Facebook Facts  More than 800 million users  More than 400 million active users log on to Facebook in any given day  An average user has 130 friends -

More Facebook Facts  Approximately 80% of users are outside of the United States  More than 70 languages available on the site  Over 300,000 users helped translate the site through the translations application -

If Facebook Was a Country -

Twitter Facts  Twitter started as a simple SMS-text service.  3 years, 2 months and 1 day. The time it took from the first tweet to the billionth tweet.  200 million Tweets per day -

Twitter Facts  Twitter gets more than 400,000 new users every day.  There are currently ~300 million users of Twitter’s services.  Over 60% of Twitter users are outside the United States

If Twitter Community Were 100 people -

Most Followed  Lady Gaga : 18 million followers  Justin Bieber : 17 million  Britney Spears : 12 million  Barack Obama : 12 million

Google+

Google+ Facts  The Google+ Hangouts work with Google Translate to make multi-language communication possible.  With a Google + account, you get unlimited photo storage on Picasa, instead of 1GB.  There is a 5000 maximum friend limit on every Google+ profile. -

Google+ Facts

Six Degrees of Separation  The idea behind 6 degrees of separation is, through “friend of a friend” connections, everyone is only 6 steps away, by way of introduction, from any other person.  FACEBOOK PROVES IT’S 4.74 DEGREES OF SEPARATION  TWITTER SHOWS IT’S 4.67 STEPS  LINKEDIN IS SET UP ON 3 DEGREES OF SEPARATION  You already know them  You know someone that knows them  You know someone that knows someone that knows them

Degrees of Separation on Facebook

Six Degrees of Separation Students Your School Teacher Shenghan, Chief Microsoft Software Engineer & MIT Graduate DigiGirlz Event Organizer

 In 2003, Peter Sheridan Dodds and his colleagues at Columbia University conducted a modern version of 6 degree of separation through studying s on the Internet. They recruited over 60,000 participants from 166 different countries for the experiment. By factoring in the rate of dropouts, the researchers calculated a median chain length of between 5 to 7 people. STUDY SHOWS 5 TO 7 DEGREES OF SEPARATION

Six Degrees of Separation Mr. Mark Harrison Broadview University Mark mentions to Mrs. White that his son, Justin Harrison, teaches History at Lehi High School. Contacts Mrs. White via Gmail to be a Guest Springville High in Business Communications on Tues, Feb 12, 2013 Mrs. White says that her husband, Mr. White, also Lehi High School -- History and Business Communications -- and works very closely with Mr. Justin Harrison. Mr. White is now sharing this information with you in Business Lehi High School. How many Degrees of Separation is that?

Degrees of Separation on Twitter  Users on Twitter can follow other users creating a network.  The average distance on Twitter is On average, about 50% of people on Twitter are only four steps away from each other.  In another work, researchers have shown that the average distance of 1,500 random users in Twitter is

Degrees of Separation on LinkedIn

Why?  Why Twitter users are “closer” than Facebook users?  80% of Facebook users are outside of the United States  60% of Twitter users are outside the United States

Social Graph

Nodes and Ties

Facebook in Nodes and Ties

Twitter in Nodes and Ties

What will you do?  What information do you want from people if you are going to build a new Social Network?  Personal Information (Node)  Friendship (Tie) Open Microsoft Word. Give us 2 topics you want to report about. Anything to do with social media. (examples: how to get a job using social media, how social media can improve your job skills, how texting helps people communicate, etc…)

Technology Behind the Scene  Challenge  More than 20 billion photos on Facebook  Each one is saved in four different resolutions  Serves around 1.2 million photos per second  Solution  Haystack is Facebook’s high-performance photo storage/retrieval system

Technology Behind the Scene  Challenge  So many user visits at the same time  More than 80 billion photos on Facebook  Database read and write is expensive  Solution  Memcached is a distributed memory caching system which Facebook, Twitter (and a ton of other sites) use as a caching layer between the web servers and MySQL servers

Technology Behind the Scene  BigPipe serves each web page in sections for optimal performance. -

More Challenges to come  The user base for these social sites is increasing almost exponentially.  This rapid growth means that these social sites will keep running into various performance bottlenecks as it’s challenged.

What we’ve Learned Today?  Social networks are very popular.  More and more people are involved in them, using and developing.  If you step into the Computer Science world, you can build things that are in everyone’s life!