Vicinity - High Quality Ambient Background Sounds in your macOS MenuBar
Friendly for Facebook - Friendly is the most complete Facebook Lite and FB Messenger alternative.
chatback - Automatically connect to people around you & chat
Facebook Lite - Facebook Lite is a light and small size app that contains all the classic features of the Facebook app such as timeline, liking or commenting on photos and other such simple features.
BuddyPress - WordPress social networking in a box.
Frost for Facebook - Frost is a third party Facebook wrapper geared towards design and functionality