MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
Product School - The global leader in product management training
Medley Text - Redefining the way programming notes are taken.
The Product Folks - A volunteer-led community of product managers and makers
Collabit - Collabit is an intranet, collaboration tool and workflow management system.
The Product Management guide - A book on how to create and ship products that people love