The Social Network movie.

Director David Fincher (Fight Club, Seven) teams with screenwriter Aaron Sorkin (The West Wing) to explore the meaning of success in the early 21st century from the perspectives of the technological innovators who revolutionized the way we all communicate. The year was 2003. As prohibitively expensive technology became affordable to the masses and the Internet made it easy to stay in touch with people who were halfway across the world, Harvard undergrad and computer programming wizard Mark Zuckerberg (Jesse Eisenberg) launched a website with the potential to alter the very fabric of our society. At the time, Zuckerberg was just six years away from making his first million. But his hearty payday would come at a high price, because despite all of Zuckerberg's wealth and success, his personal life began to suffer as he became mired in legal disputes, and discovered that many of the 500 million people he had friended during his rise to the top were eager to see him fall. Chief among that growing list of detractors was Zuckerberg's former college friend Eduardo Saverin (Andrew Garfield), whose generous financial contributions to Facebook served as the seed that helped the company to sprout. And some might argue that Zuckerberg's bold venture wouldn't have evolved into the cultural juggernaut that it ultimately became had Napster founder Sean Parker (Justin Timberlake) not spread the word about Facebook to the venture capitalists from Silicon Valley. Meanwhile, the Winklevoss twins (Armie Hammer and Josh Pence) engage Zuckerberg in a fierce courtroom battle for ownership of Facebook that left many suspecting the young entrepreneur might have let his greed eclipse his better judgment. The Social Network was based on the book The Accidental Billionaires by Ben Mezrich.

Twitter.

Twitter is an online social networking service and microblogging service that led usera to send and read messages, but only with 140 characters known as 'tweets'.
This social networking was created in March 2006 by Jack Dorsey, and by July the site was lauched. It gain popularity very quickly. Now has aproximately 200 million users, and over 340 millions tweets per day.
Twitter has becoma one of the most visited website on the Internet, and its has been described as 'the SMS of the internet'.

The Logo.
The name of the bird; Larry, came from a NBA player called Larry Bird from the Boston Celtics.

How to use Twitter

Facebook.

Facebook is an online social networking service whose name stems from the colloquial name for the book given to students at the start of the academic year by some university administrations in the US to help students get to know each other. It was founded in February 2004 by Mark Zuckerberg with his college roommates and fellow Harvard University students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.

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. Aditionaly, users may join common-interest user groups, organized by workplace, school or college, or other characteristics, and categorize their friends into lists. At S
eptember 2012, Facebook has over one billion active users. Facebook has affected the social live and the acticity of people in various ways. With its availability on mobile devices, Facebook allow users to continiously stay in touch with friends. It can also unite people with common interests or beliefs through groups and pages, and has been known to reunite lost family members and friends because of the widespread reach of its network.