Nautilus Inc. promoted William B. McMahon to chief operating officer. McMahon has been a senior vice president at Nautilus since November 2009, running the Vancouver, Wash.-based fitness equipment manufacturer's consumer division.

Since joining Nautilus in 2005, he has held several leadership roles, including vice president and general manager of Nautilus' direct to consumer business. Prior to Nautilus, he held executive positions with the Readers Digest AssociationbizWatch from 1989 through 1995, including chief operating officer of e-commerce site

He has also been vice president of operations for Good Catalog, a luxury home goods and electronics company, and director of U.S. operations for QSP Inc.bizWatch , North America’s largest school fundraising program.