Raindrop.io - All your articles, photos, video & content from web & apps in one place.

Shaarli - Shaarli is a minimalist link sharing software you can install on your own website

Pocket - When you find something you want to view later, put it in Pocket.

Tagpacker - A free tool to quickly collect, organize, and share your favorite links.

wallabag - Save the web, freely.

Pinboard - Pinboard is a personal archive for things you find online and don't want to forget.