The popular business networking site - LinkedIn - is launching a mobile version of its website, allowing users to look up profiles of other members and keep up to date with their network from mobile devices on the go.

The site, which hosts about 19 million members, launched an optimized Web site specifically for mobile devices and members can log into the mobile application at m.linkedin.com. The beta version supports different languages, including English, French, German, Spanish, Japanese, and Chinese. The final version will become available this spring, according to the company.

Let's face it, every professional today is carrying a wireless device, said CEO Dan Nye. Many of these professionals are on the move, attending conferences, sales meetings, and client events. Making LinkedIn available on mobile devices responds to both these business realities and will be great for our users.

The social network, specifically tailored for business people, allows users to create trusted networks of contacts to share expertise, job opportunities, and other business related ventures. LinkedIn said it also released a version optimized for Apple's iPhone, an specific versions for other phones will follow suit.

LinkedIn is backed by several investors, such as Sequoia Capital, Greylock, the European Founders Fund, and Bessemer Venture Partners.