LinkedIn, which was created in 2003, is the No. 1 global, business, social media site. Since then it has become available in 20 languages in more than 200 countries. More than 330 million people use it globally: in Hungary it has at least 500,000 users. Originally designed for building business relations, the social network has grown into one of the major job-search, recruitment and information portals. Many international companies use LinkedIn to recruit new staff because the network, in practice, also functions as a huge CV database and HR experts are able to filter the database down to find the most suitable candidate for a vacant position. Many users also find it very useful to build a career or to collect information. LinkedIn can be downloaded onto iOS and Android free of charge.