Whether you are new to either SharePoint products or SharePoint Online, or you are familiar with both but new to Office 365, explore these resources to begin learning how to use SharePoint Online.
Find out how to plan your sites collections and sites for SharePoint Online.
Read this guide for SharePoint Online Administrators to learn how to manage SharePoint Online site collections.
Learn how to perform common tasks with SharePoint Online.
Take an online course to learn how to use this version of SharePoint and what it can do for you.
Read this guide to the new ribbon interface to learn how you complete familiar tasks in SharePoint Online.
For more information about how to get started with other SharePoint products, see Getting started with SharePoint 2010.