This week’s headlines: Amazon Launches #AmazonCart, Facebook Announces
Video Metrics, Twitter Shares Slide as Lockup Ends, Twitter Introduces
Language Targeting for Ad Products and Tumblr Launches Mobile Customization
Features.
The week’s news quick hits: John McAfee Releases Secure Messaging App,
LinkedIn Introduces Different Ads for Language Preferences, Twitter Makes
Deal with Exclusive South Africa Ad Partner, App.net Reports Revenue
Viability, LinkedIn Announces CardMunch Shutdown and Twitter Expands
One-Click Video Ads to More Advertisers.