Marriott says more than 1,400 employees have participated in the Sed de Saber program since its launch in 2006. That cohort alone can be expected to grow, based on four new agreements that will nearly triple the company's presence in Mexico over the next five years. Marriott plans to add 29 branded hotels in Mexico, representing a total investment of more than $1 billion by the owners of the Marriott properties. Currently, Marriott's portfolio in Mexico consists of 16 hotels and resorts under the JW Marriott, Marriott, Courtyard, Residence Inn and Fairfield Inn brands.

Marriott will begin offering the Rosetta Stone program throughout the US at its company-operated hotels, regional offices and Bethesda, MD, headquarters. The program will roll out to Marriott International's subsidiaries, Ritz-Carlton and Marriott Vacation Club International, by the end of 2009.