LinkedIn is the world’s largest professional network with over 175 million members and growing rapidly. LinkedIn connects you to your trusted contacts and helps you exchange knowledge, ideas, and opportunities with a broader network of professionals.
Founded in December 2002 and launched on May 5, 2003, it is mainly used for professional networking. As of June 2012, LinkedIn reports more than 175 million registered users in more than 200 countries and territories.[4]
The site is available in English, French, German, Italian, Portuguese, Spanish, Dutch, Swedish, Romanian, Russian, Turkish, Japanese, Czech, Polish, Korean, Indonesian, and Malay. Quantcast reports LinkedIn has 21.4 million monthly unique U.S. visitors and 47.6 million globally. In June 2011, LinkedIn had 33.9 million unique visitors, up 63 percent from a year earlier and surpassing MySpace. LinkedIn filed for an initial public offering in January 2011 and traded its first shares on May 19, 2011, under the NYSE symbol "LNKD".
One purpose of the site is to allow registered users to maintain a list of contact details of people with whom they have some level of relationship, called Connections. Users can invite anyone (whether a site user or not) to become a connection. However, if the invitee selects "I don't know" or "Spam", this counts against the inviter. If the inviter gets too many of such responses, the account may be restricted or closed.
This list of connections can then be used in a number of ways:
- A contact network is built up consisting of their direct connections, the connections of each of their connections (termed second-degree connections) and also the connections of second-degree connections (termed third-degree connections). This can be used to gain an introduction to someone a person wishes to know through a mutual contact.
- Users can upload their resume or design their own profile in order to showcase work and community experiences.
- It can then be used to find jobs, people and business opportunities recommended by someone in one's contact network.
- Employers can list jobs and search for potential candidates.
- Job seekers can review the profile of hiring managers and discover which of their existing contacts can introduce them.
- Users can post their own photos and view photos of others to aid in identification.
- Users can now follow different companies and can get notification about the new joining and offers available.
- Users can save (i.e. bookmark) jobs which they would like to apply for.
The feature LinkedIn Answers,[43] similar to Yahoo! Answers, allows users to ask questions for the community to answer. This feature is free, and the main difference from the latter is that questions are potentially more business-oriented, and the identity of the people asking and answering questions is known.
Another LinkedIn feature is LinkedIn Polls. In December 2011, LinkedIn announced that they are rolling out polls to their one million groups.
In mid-2008, LinkedIn launched LinkedIn DirectAds as a form of sponsored advertising.
In October 2008, LinkedIn revealed plans to opening its social network of 30 million professionals globally as a potential sample for business-to-business research. It is testing a potential social-network revenue model-research that to some appears more promising than advertising.
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