Monosnap - Monosnap is a comprehensive screenshot taking software system that provides users with a fast and accessible way to take screenshots whenever they want. Read more about Monosnap.
Nimbus Clipper - Capture, annotate, and share anything you see online
Annotate - Annotate (formerly know as Glui) is the simplest way to capture, annotate and share screenshots.
Notebook Web Clipper - Clip text, images, and entire articles from the web
LabelMe Annotation Tool - LabelMe is an annotation tool writen in Javascript and Perl for online image labeling.
Save To Notion - Free Chrome extension to quickly save webpages to Notion