FileProInfo - It's All About Files, Software, Online Tools - 100% Free
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
File-Extensions.org - Large computer file extension library with detailed explanation of each file type with links to download free or associated software programs.
Wrike - Wrike is a flexible, scalable, and easy-to-use collaborative work management software that helps high-performance teams organize and accomplish their work. Try it now.
GroupDocs - GroupDocs is a web-based service for online document sharing, collaboration and management.
Slack - A messaging app for teams who see through the Earth!