Facebook's mobile ad dominance squeezes start-ups
Facebook built the most popular social network on the backs of spendthrift college kids. It's turned into a $300 billion juggernaut thanks to the world's biggest brands.
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Everyone wants to make smart rings ? but no one knows what for
About halfway through the trailer for the 2011 movie Green Lantern ? it?s presumably in the movie, too, but that?s impossible to verify because no one ever saw it ? an otherwise ordinary Ryan Reynolds slides a big, blocky ring onto his middle finger and becomes a superhero.
Read more on Wired

Apple Watch can now summon a Tesla
An Apple Watch app update has enabled the ability to "summon" a Tesla directly from the wrist, with the car opening the garage door and driving itself down the driveway. 
Read more on International Business Times

Amazon adds booze to same-day delivery service
Just in time for the Super Bowl, Amazon is giving San Diegans a way to complete their last-minute beer and booze runs without having to get off the couch.
Read more on San Diego Tribune