CAMBRIDGE, Mass.--(BUSINESS WIRE)--Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY), a leading RNAi therapeutics company, today announced that it will webcast its R&D Day being held Thursday, March 6, 2008 from 9:00 a.m. to 12:00 p.m. ET at the Sofitel New York Hotel in New York City. Alnylam senior management and collaborators will review the company’s research and development programs.