Here's what you may have missed this week in the real of social media and tech:

• Ford CEO Predicts Self-Driving Cars Will Arrive in 15 Years - “I would guess we get to full autonomy in 15 years,” said Ford CEO Mark Fields. “Camera technology is moving along very fast. Algorithms are advancing very fast,” said Fields, who admitted that he did not expect cars to be able to perform certain autonomous tasks, like parking themselves, just five years ago. “Now the car is becoming the ultimate technology product and we are becoming more of an information company,” he said.
• Facebook Testing Translation Tool? - Facebook appears to be toying with the option of allowing users to translate their posts into different languages. One user shared a screenshot with SocialTimes, in which users are informed: Now you can translate posts into other languages so that more people can enjoy them. Just click translate under a post to get started.
• Twitter Officially Launches Its “Retweet With Comment” Feature - Twitter just officially launched its “retweet with comment” feature, which it began testing last summer. “Retweet with comment” allows users to embed a tweet in their own tweets, which lets them get around Twitter’s 140-character limit when they write their own commentary. The feature is now available on Twitter’s site and iPhone app and will be available on its Android app soon.
• LinkedIn just bought online learning company Lynda for $1.5 billion - LinkedIn just purchased Lynda.com, an online learning company, for $1.5 billion, the company announced on Thursday. Founded in 1995, Lynda.com lets users learn business, technology, software, and creative skills through videos. People can access Lynda on their own, and corporations and schools can purchase subscriptions.