External collaboration has never been easier with the latest version of SharePoint Online. Every end-user can store personal and business documents with OneDrive for Business. SharePoint Online makes it very easy to share these documents with colleagues but also your business contacts. The Project Site is a new site template with valuable features for project collaboration. You may ask yourself: what features? These include an integrated OneNote Notebook, Site Mailbox, Document Library and a Task list with a timeline to present important tasks in a clear overview. It doesn't stop here! Microsoft acquired Yammer in 2012 and promoted Yammer as the Social tool for SharePoint Online. Since the acquisition, Yammer is being integrated with SharePoint Online. The combination of SharePoint Online and Yammer proves to be the perfect solution for external collaboration.