Social Media Newsfeed: Mountain Lion | Facebook Resignation | Foursquare Ads

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Apple OS X Mountain Lion Goes on Sale Today (Mashable)
In its earnings report Tuesday, Apple announced that the long-anticipated Mountain Lion, otherwise known as OS X 10.8, would go on sale first thing Wednesday morning — just as predicted. Costing $19.99, it will be available in the Mac app store, and anyone who bought a new Mac on or after June 11 is entitled to a free upgrade. VentureBeat The company has thus far gone the whole month without a peep on when we’d be able to download the latest OS, until Monday, when it accidentally opened up the “Up-to-Date” portal, which was quickly taken down. The operating system comes with 200 new features, which were shown off at WWDC. CNET They include Reminders, Notes and even the Notification Center. There’s also a new security feature, Gatekeeper, which aims to reduce malware by blocking uncertified apps from being installed. PC Magazine Other features are iCloud integration, a new silent updating option known as Power Nap, as well as 1,700 new APIs. On the iCloud front, Mountain Lion will make it easier for users to sync documents between Macs and iOS devices, and Apple’s popular iMessage service has displaced the venerable iChat on Mountain Lion. Reuters Apple’s results fell short of Wall Street’s expectations as the European economy sagged and consumers held off on buying its flagship iPhone ahead of a new version expected in the fall, hitting its stock price. Shares of the world’s most valuable technology company shed more than 5 percent of their value after Apple – which beats Wall Street expectations with near regularity – reported its second quarterly miss on results in less than a year.

Director of Product Management Carl Sjogreen Leaving Facebook (AllFacebook)
Facebook director of product management Carl Sjogreen, best known for leading the social network’s charge ahead with its open graph application platform, announced Tuesday that he is leaving the company, offering no details about his next role. Sjogreen marked the third high-profile departure since Facebook’s May 18 initial public offering. Los Angeles Times After flopping on Wall Street, Facebook will get a chance this week to win over investors when it reports quarterly earnings for the first time as a public company on Thursday. The social networking giant is under intense pressure to show its business model can deliver solid growth and profits for shareholders. Inside Facebook Facebook users are more likely to Like or comment on a page post after clicking on a mobile Sponsored Story than users who click on a desktop ad, according to a report by Facebook ad optimization company AdParlor. Specifically, users coming from mobile ads comment 22 percent more and like posts 63 percent more than users who come from desktop ads.

With Promoted Updates, Foursquare Helps Advertisers Push People into Stores (VentureBeat)
After three-plus years, 20 million members and 2 billion check-ins, Foursquare is ready to grow up. The social network, which lets users check-in at restaurants, retailers, and other venues, is finally incorporating paid ads into its service, like Facebook and Twitter have done.

Can Real Names on YouTube End Nasty Comments? (Mashable)
YouTube is making it harder for users who post negative and hurtful comments on videos to hide behind the site’s anonymity. The video-sharing site is urging users to start using their full name when commenting and uploading clips. Instead of displaying a pen name linked to the YouTube account, the company wants to link to the user’s full name and picture used on their Google+ account.