The Edinburgh-based digital agency was appointed to provide technical, creative and strategic support across three continents following a multi-agency pitch.

As well as managing the corporation's digital direct response projects, Line will also handle site updates across a porfolio of brands including Wyndham, Ramada and Days Inn.

"We're delighted to be working across these regions to define a new, consistent and engaging experience for the company’s customers across all its key brands, and will be implementing a number of exciting new projects over the course of 2010," said Ross Laurie, managing director at Line.

Over the next two years Line will develop a series of online tools designed to help improve user experience and boost sales, including integration of hotel availability and information for the Days Inn chain into Google Maps.

"The scope and breadth of our online activities continues to grow," said Andrew Dufty, Wyndham Hotel Group's vice president of international marketing. "We were looking for an experienced creative and strategic agency to provide practical support and advice as the company continues to develop its digital presence."