SharePoint 2010

Microsoft SharePoint is a web-based collaboration tool that includes document management, wikis, blogs, intranet, and many other integrated features that enable efficient and effective collaboration amongst your team.

Microsoft's SharePoint 2010 User Training Guide
We highly recommend these walkthroughs & video tutorials from Microsoft Online.
What's Changed in the SharePoint 2010 Layout?
Layout differences of SharePoint 2010.
Creating New Lists, Libraries, Pages & Sites
Create new lists, libraries, pages & sites in SharePoint 2010.
Tools for Lists, Libraries & Calendars
When viewing a list, Tools tabs appear for editing the list & list items.
Creating & Editing SharePoint Pages
Create & edit the two types of SharePoint Pages available at UNC: Web Parts Pages, such as your home page, and Wiki Pages.