Link Round Up – Sept 10

Tab dump:

Ad agencies and their clients have begun demanding that publishers provide robust, contractual guarantees on ad “viewability” but the new requirements are unrealistic. – The Information

Tumblr has quietly, stealthily altered it’s search engine so that by default if there is any racy content (making it more advertiser friendly?) – Jake Adelstein

YouTube converts more customers than anyone else – Venturebeat

More media attention for personal data lockers (we’ve seen this movie before) – Time

A quote from Apple, via Om Malik: “We are not in the business of collecting your data — @cue #applelive” Twitter

Once Alibaba becomes a tradeable security itself, investors won’t need to buy Yahoo shares so Yahoo stock price is likely to slow – Quartz