Confluence - Confluence is content collaboration software that changes how modern teams work
Beyond Compare - Beyond Compare allows you to compare files and folders.
Slack - A messaging app for teams who see through the Earth!
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
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.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.