Facebook recently shared their desire for tapping into mobile industry and concentrate more on designing apps for smartphones and tablets as this is the reigning technology people are interested in and also by marketing over wireless devices it seeks to boost their revenue that saw a downfall.

In an e-mailed statement, Menlo Park, of Facebook said "Showing mobile ads outside of Facebook is another great way for people to see relevant ads and discover new apps."

The service is part of a "small test," the company said. By placing ads on third-party applications, Facebook follows competitors, including Google Inc. and Apple Inc. in acting as a supposed ad network.

This particular strategy would let it pull together part of the revenue generated from mobile marketing and profit from growing demand for ads that reach the rising number of people who download applications on mobile devices.

Facebook, which makes up most of its capital from advertising, didn't come up with its first mobile-ad service until March.

The famous networking site announced last month that it would let application developers aim Facebook users on mobile devices.

Shares of Facebook saw a rise of 1.6 percent to $21.87 yesterday in New York, after Facebook's losses increased to 42 percent since the company's May 17 IPO.