UF-001 · 2019
Social network · Google
Google+ — The Social Network Google Made You Join and Nobody Used
Google · Shut Down
UF-002 · 2017
Video network · Twitter
Vine — The Six-Second Network Its Owner Never Learned to Sell
Twitter · Shut Down
UF-003 · 2015
Social network · Friendster Inc.
Friendster — The First Mass Social Network, Outrun by Everyone It Inspired
outcompeted (MySpace/Facebook) · Shut Down
UF-004 · 2011
Social network · News Corp
MySpace — The King of Social Media, Sold for a Fifteenth of Its Price
Facebook (then News Corp mismanagement) · Sold Off
UF-005 · 2014
Social network · Google
Orkut — Google’s First Social Network, Beloved Everywhere but America
Google · Shut Down
UF-006 · 2018
Social network · Path Inc.
Path — The Beautiful Small Network That Couldn’t Stay Small
Couldn't scale a small network / Facebook · Shut Down
UF-007 · 2017
Social network · Yik Yak Inc.
Yik Yak — The Anonymous Campus App That Died of Its Own Anonymity, Then Came Back
Harassment backlash / no growth · Revived
UF-008 · 2012
Social news · Digg, Inc.
Digg — The Front Page of the Web That Redesigned Itself to Death
the v4 redesign / Reddit · Sold Off
UF-009 · 2015
Social aggregator · FriendFeed, Inc.
FriendFeed — The Geeks’ Real-Time Network Facebook Bought for Its Brains
Facebook (acqui-hire) · Shut Down
UF-010 · 2013
Social network · Bebo, Inc.
Bebo — The $850 Million Teen Network AOL Spent Into Bankruptcy
AOL acquisition / Facebook · Bankrupt
UF-011 · 2011
Social network · Google
Google Buzz — The Social Network That Outed Your Contacts on Day One
Google (privacy fiasco → Google+) · Shut Down
UF-012 · 2017
Social network · Mixed Media Labs
App.net — The Paid Twitter That Asked Users to Be the Customer
couldn't sustain a paid social network · Shut Down
UF-013 · 2021
Live-streaming network · Twitter
Periscope — The Live-Streaming App Twitter Bought, Then Swallowed
Twitter (absorbed in-app) · Shut Down
UF-014 · 2016
Social network · Pankhurst / Porter
Friends Reunited — Britain’s First Social Network, Overpaid For and Switched Off
Facebook / ITV mismanagement · Shut Down
UF-015 · 2001
Social network · Weinreich / MacroView
SixDegrees.com — The First Social Network, Born Too Early to Survive
too early / dot-com crash · Shut Down