Annotate - Annotate (formerly know as Glui) is the simplest way to capture, annotate and share screenshots.
Confluence - Confluence is content collaboration software that changes how modern teams work
LabelMe Annotation Tool - LabelMe is an annotation tool writen in Javascript and Perl for online image labeling.
Slack - A messaging app for teams who see through the Earth!
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.
Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.