Hewlett-Packard using InfoPath, SharePoint and Groove, with quantifiable cost savings. Here's the headline:

Using Microsoft Office Professional Edition 2003, InfoPath 2003, Windows SharePoint Services, and Groove Workspace, HP automated the publishing of sales guides to its intranet, thereby decreasing development time and improving the quality of its guides.

With Groove Workspace, HP and non-HP users working outside the corporate firewall will be able to securely exchange XML documents regardless of network connection or physical location, thus allowing HP to seamlessly integrate cross functional and highly mobile teams in the content creation process. Whether an outsourced technical writer needs remote access to the content or an HP employee is on a plane, any changes they make during the content creation process will be automatically synchronized to the HP solution.