From Instagram to TikTok: How social media evolved this decade

Shortly after midnight Pacific time on October 6, 2010, a new app built by a small team went live on Apple's App Store. Right away, they noticed people abroad signing up for the app, called Instagram; by 6 a.m. the startup was so overwhelmed with traffic that its servers reportedly melted down.

Instagram creates new Threads messaging app

The future of Instagram continues to look more and more like Snapchat. The latest example: a new camera-focused app for messaging close friends -- which reads like a product description for rival Snapchat.

Snapchat unveils redesigned Spectacles sunglasses

Snap isn't giving up on its smart sunglasses.On Tuesday, the Snapchat parent company announced Spectacles 3, the latest version of its video-recording sunglasses now with new 3D effects and an eye-popping price tag. The device, which will ship in the fall but is available for pre-order now, retails at $380, more than double the cost of its previous version.