
Evan Williams (left) and “Biz” Stone, founders of Twitter, use the social-networking service at the company's headquarters in San Francisco on April 13, 2009.
Image: Peter DaSilva — The New York Times/Redux
Evan Williams (left) and “Biz” Stone, founders of Twitter, use the social-networking service at the company's headquarters in San Francisco on April 13, 2009.
Image: Peter DaSilva — The New York Times/Redux
Online service for distributing short messages among groups of recipients via personal computer or mobile telephone.
Twitter incorporates aspects of social networking Web sites, such as MySpace and Facebook, with instant-messaging technologies to create networks of users who can communicate throughout the day with brief messages, or “tweets.” A user types a tweet via mobile-phone keypad or computer and sends it to Twitter’s server, which relays it to a list of other users who have signed up to receive the sender’s tweets (known as followers) by either text message to their mobile phones or instant message to their personal computers. Tweets may be on any subject, ranging from jokes to news to dinner plans, but they cannot exceed 140 characters.
Twitter was written on a specialized Web-application framework of the Ruby computer-programming language. Its interface allows open adaptation and integration with other online services. Twitter was created in 2006 by the American podcasting company Odeo (later Obvious Corp.), and in 2007 the software spun off into its own entity. Twitter, Inc., which was founded on a heavy infusion of venture capital, offered the service to the public for free. As its popularity exploded around the world, however, costs escalated, and the company began adjusting its business model, scaling back free phone-based short message service (SMS) in many areas and seeking means of generating revenue.
While Twitter’s roots are in social, peer-to-peer (P2P) networking, businesses soon began sending tweets about promotions and events. Political campaigns have also used Twitter for promotion, as well as for communication between field organizers and workers. Twitter has been used by journalists and ordinary citizens to report from the scenes of breaking-news events. For example, most journalists were prevented from reporting on protest rallies in Tehrān following a disputed Iranian presidential election in June 2009. Though television and radio coverage had been suppressed, Iranian citizens used Twitter and social Web sites, such as Facebook, to share information concerning alleged voting irregularities and plans for protest marches. Perhaps as important as the eyewitness information going out by protesters was feedback they received from around the world in support of their efforts.
American company offering online social networking services. Facebook was founded as a social networking Web site in 2004 by Mark Zuckerberg, Dustin Moskovitz, and Chris Hughes, all of whom were students at Harvard University. Membership was initially limited to Harvard students but gradually expanded to include all college students, high school students, and, eventually, anyone past age 13. The site generates revenue through advertising. Facebook headquarters are in Palo Alto, Calif.
Access to Facebook online is free of charge. New users can create profiles, upload photos, join a preexisting network, and start new networks. The site has many components, including the Wall, a space on each user's profile page where friends can post messages; Status, which enables users to alert friends to their current location or situation; and News Feed, which informs users of changes to a friend's profile.
Facebook added numerous features following its inception. For example, it allowed users to create their own blogs starting in August 2006. In February 2007 it launched Gifts, which allowed users to send virtual gifts (icons) to friends for a nominal fee. A few months later the company launched Facebook Marketplace, which allowed users to post free classified ads, and Facebook Platform, which enabled users to create new applications that interacted with or enhanced existing Facebook applications. In June 2008 the company made part of its software code open source (essentially copyright free), as Facebook Open Platform, in order to entice more third-party software developers into writing applications that enhance the features in its social networking site. This move was widely seen as a response to one of its competitors, Google, which launched Open Social in November 2007 in order to make it easier for developers to write applications for MySpace and other competing social networking sites. In November 2007 Facebook launched Facebook Beacon, which allowed users to share information from other Web sites, including information about their activities on those Web sites.
American search engine company, founded in 1998 by Sergey Brin and Larry Page. About 70 percent of all online search requests are handled by Google, placing it at the heart of most Internet users' experience. The company's headquarters are located in Mountain View, Calif.
Non-rectangular national flag consisting of two united pennant (triangular flag) shapes. Nepal is the only country in the modern world that does not have a rectangular national flag. It is crimson with blue borders and incorporates stylized symbols of the sun and moon.
Hundreds of independent states existed on the Indian subcontinent prior to the period of British control there in the 17th–19th centuries. Many of these countries, including Nepal, had state flags of their own, their symbols usually representing the ruling dynasty. Frequently, the flag designs, shapes, and colours were (by European standards) unusual. Most of those flags disappeared as the British extended their control; the remainder lost international validity with the establishment of independent India in 1947.
Nepal has remained a separate, sovereign kingdom and proudly flies its traditional flag, whose basic design dates back for centuries. The background colour is crimson, the border a dark blue—both popular colours in Nepalese art and decoration. In the upper segment is a white moon emitting eight rays, with a crescent attached below; in the bottom segment appears a white, stylized sun with 12 rays. These two symbols are associated with different dynasties and also express the hope that the country may have the same longevity as the sun and moon. Originally, there were facial features represented in red on both the sun and moon. The present flag, which omits those features, was established under the new constitution of December 16, 1962. The same symbols appear on the dozens of different civil and military flags used by Nepalese officials.
Whitney Smith - Director, Flag Research Center, Winchester, Massachusetts. Author of The Flag Book of the United States and Flags and Arms Across the World.
Whether you’re creating a brand or just in the mood to have a username that tons of other people don’t already have, it’s important to choose a unique and effective username.
Choose a username that is easy to remember and reflects you or your brand. To make it unique, you may have to make up a word or use a combination of uncommon words. To make it strong, it will have to be recognizable and easy to remember.
If you choose two or more words to create your username, make sure they sound good and make sense together. You don’t want to have to say a tongue twister every time you tell someone your username.
Consider using interesting (incorrect) spellings of words or numbers, but only if they make sense or are used in moderation. For example, too many misspellings will start looking ridiculous, like spelling special like speshial. A good rule of thumb is that if you can’t recognize the misspelled word easily, it’s not worth using. You might be able to use something simple like krazy for crazy, but going nuts and using lots of numbers instead of letters and weird misspellings won’t work well.
Realize the difference between good unique and bad unique. Good unique would be easy to spell and remember, but not common. Bad unique would be hard to spell, difficult to understand, and impossible to remember. Being unique is great, but if that uniqueness won’t be memorable or create a strong brand or image, it’s useless.
Make sure that you’re happy with the username that you choose. If you don’t like it, you won’t feel comfortable with it, so it will be useless.
Go to http://www.usernamecheck.com/ and check if your username is taken on a number of sites. If it’s free on most or all sites, you’ve got yourself a unique username.