Pocket - When you find something you want to view later, put it in Pocket.
Notezilla - Colorful & powerful sticky notes app for Windows & Phones.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
OneNote - Get the OneNote app for free on your tablet, phone, and computer, so you can capture your ideas and to-do lists in one place wherever you are. Or try OneNote with Office for free.
Diigo - Diigo is a powerful research tool and a knowledge-sharing community
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.