"Users of Turkey's equivalent to Reddit received an unsettling message late last night. Across the site, users began complaining that they'd received a mysterious DM from an account named "iamwaldo" that left many people feeling paranoid and anxious. It appears that was the intention of the message, which is actually a viral marketing ploy to promote the new season of Black Mirror."
"Facebook's News Feed-the main list of status updates, messages, and photos you see when you open Facebook on your computer or phone-is not a perfect mirror of the world.
But few users expect that Facebook would change their News Feed in order to manipulate their emotional state."
"Croquet eliminates dedicated servers and server-side code from online multiuser apps. Instead, users connect through our worldwide network of public reflectors. Every input is mirrored by the reflector to a shared virtual computer that runs bit-identical across every client, so everyone stays perfectly in sync"