Mustbin - Everything in one place. Whenever you need it.
Raindrop.io - All your articles, photos, video & content from web & apps in one place.
Cervino - One app for everything you do
Pocket - When you find something you want to view later, put it in Pocket.
Textto - Text from your computer for free
Basket - A note taking application for KDE. Lots of features.