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 are no longer built to last (Nieman Journalism Lab)
• Egmont Publishing launches Star Wars Adventures Magazine in the UK (FIPP)
• New Pew data: More Americans are getting news on Facebook and Twitter (Nieman Journalism Lab)