tweedium - Transform your tweetstorms to Medium posts
MUTE - Crowdsourced words list to mute on social media
Mastodon - Mastodon is a decentralized, open source social network. This is just one part of the network, run by the main developers of the project It is not focused on any particular niche interest - everyone is welcome!
News Feed Snooze - Hide a person, Page or group for 30 days on Facebook
TweetDeck in #280Characters - 280-character tweets for everyone [No longer available]
Mute Filters by Feedly - Block distracting memes, amplify news that matters