Microsoft Office 365 provides web, desktop, and mobile apps for Outlook, Word, Excel, PowerPoint, OneNote, Publisher, Skype, OneDrive, Exchange Online, and more.
SugarCRM is a Social CRM tool that includes full sales, marketing and support automation, email integration, reporting, team selling, advanced security and workflow automation. Sugar Social CRM is all about external customers, not just behind-the-firewall collaboration.