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

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

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

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

ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...

Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.