Robert Love, faculty at Columbia's school of journalism, and former editor-in-chief of Rolling Stone, writes at length about the history of yoga as it's appeared in the American press since 1909. After an exhaustive and entertaining review of personalities, movements, and attitudes, Love concludes that yoga is a marketer's dream, a flourishing and trend-proof recreation (vocation?) that can sell anything and everything.
Read more in "Fear of Yoga" at the Columbia Journalism Review web site.