LinkedIn Trading on NYSE

With its three revenue streams – premium subscriptions, online advertising and recruitment hiring tools – LinkedIn has more than 100 million users, from more than 200 countries and territories around the world. The site is available in six languages – English, German, French, Italian, Spanish and Portuguese – and according to media measurement service Quantcast, LinkedIn receives 21.4 million unique U.S. based visitors, and 47.6 million global visitors per month. The site was rated at number ten on the Silicon Alley Insider Top 100 list in October 2010 and is ahead of competitors Viadeo and XING in membership numbers, with an estimated membership growth of one new member every second.

The primary purpose of the site is to enable members to compile a list of contacts, referred to as connections, with whom they have a relationship on some level. This list of connections can be used to gain access to potentially mutually beneficial business associates through second-degree connections (connections of your connections) and third-degree connections (through connections of second-degree connections). This expanded list of connections opens up many more opportunities for LinkedIn users to find jobs and business opportunities in their field of expertise, and for employers to list jobs for suitable candidates. Users can also post their own profiles and photos and view other users’ profiles, as well as research companies as groundwork for making contact. Other features include LinkedIn Polls; LinkedIn Answers; LinkedIn DirectAds; and a mobile version of the site.