Raindrop.io - All your articles, photos, video & content from web & apps in one place.
MediaWiki - MediaWiki is a free software wiki package written in PHP, originally for use on Wikipedia.
start.me - A Modern-day bookmark manager. A place for your favorites. A news feed (RSS) reader. A browser startpage. A portal for your team.
TiddlyWiki - a non-linear personal web notebook
Pocket - When you find something you want to view later, put it in Pocket.
Confluence - Confluence is content collaboration software that changes how modern teams work