Mag world view: Diversifying enthusiasm; Making free pay; Oprah is 15; More news from Facebook & Twitter

How The Enthusiast Network is Diversifying Its Revenue (Folio:)
Making free pay: seven lessons from media businesses that stopped charging (Guardian) 
15 Years And Counting – O, The Oprah Magazine Celebrates The Major Milestone -- Interview With Lucy Kaylin, Editor-In-Chief (Mr. Magazine)
Mel Scott becomes first chief revenue officer at Mail Brands (Media Week)
Newsonomics: When news companies