ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
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.
Awesome Screenshot - Capture the whole page or any portion, annotate it with rectangles, circles, arrows, lines and...
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
BrowseShot - BrowseShot lets you capture a PNG of the full scrollable area of a website.
Google Keep - Capture notes, share them with others, and access them from your computer, phone or tablet. Free with a Google account.