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

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.

Diigo - Diigo is a powerful research tool and a knowledge-sharing community

Omnivore - Omnivore allows developers to integrate with the leading POS systems, and connects restaurants to the latest technologies.

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

Tweetbase - Turn Twitter into knowledge base