FriendFeed

 FriendFeed  was a silo for posting content, as well as an aggregator of feeds and posts from other sites, and notably the inventor of the "Like" button in 2007. Acquired by Facebook in 2009, it was shutdown completely on 2015-04-10.

2015-04-10
https://scontent-sjc.xx.fbcdn.net/hphotos-xfa1/t31.0-8/s720x720/11054332_10152890799168983_3185838814550842121_o.jpg

Replacements
Sites that are springing up to replace FriendFeed:
 * http://yeni-friendfeed.com/ (Turkish - because apparently there was a big Turkish community on FriendFeed)