Link Round Up Sept 29

Some big hairy questions for advertising and marketing technology | Darren Herman

Om Malik on Twitter: “Looks like @pinterest is changing its privacy policies to keep up with “promoted pins” push. – Twitter

Can a hot, new social network survive without advertising? – Fortune

Online music stores like iTunes are seeing sales drop — but those revenues are being replaced by the boom in streaming services like Spotify and Pandora. – Recode

In order to access Facebook, users must agree to allow Facebook to track users, even when they aren’t on Facebook, for advertising purposes. – WSJ

Facebook Launches Atlas Ad Platform for Web, Mobile, Apps – Recode

The risk/reward of being in the iPhone case business: In 2011, Hard Candy spent $50,000 on a 4s case prototype that turned out to be wrong. –Racked

Google Beefs Up Mobile Ad Offerings For Brands With New Formats & Tools – Marketingland

Yishan Wong (CEO of Reddit) on ad supported user generated media sites: all user-generated content sites inevitably have ads on them. – Twitter