World view: Lord Black objects; Sue over riot info demands; teaching magazine; falling paper prices?

• Time Warner's publishing ad sales slow, but CEO remains positive (CityBizList)
• Conrad Black hits out at Murdoch "price war myth" (Jon Slattery)
• NUJ urges media to go to court over riot material (Jon Slattery)
• Collecting six covers of one issue becomes like baseball cards (Mr. Magazine)
• First-half newsstand declines in more detail (Audience Development)
• Financial Times app exits the app store (Audience Development)
• Five reasons why paper prices could drop this fall (Folio:)
• Teaching magazine journalism beyond the magazine (MediaShift) 
• Attention: The online ad industry is now officially regulating itself (paidContent) 
• Bauer to resurrect men's Gaz7etta in September's Grazia (Media Week)