Duuoo - Meetings that Matter
FileProInfo - It's All About Files, Software, Online Tools - 100% Free
Matter - Create a feedback-focused culture in Slack with Matter!
File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
Moodbot for Slack - A Slack bot tracking employee moods + actionable data
GroupDocs - GroupDocs is a web-based service for online document sharing, collaboration and management.