to Mac - Click Here

All about 'Yosemite' - Click Here

Whether you just bought your first Mac or you're curious about how easy it is to use, this video will show you the Mac from a Windows user's point of view. - Click Here (6 minutes)

You access all the files on your Mac in one place — it's called the Finder. Take a tour of the Finder and get one-click access to your devices, shared items, applications, and documents.
Click Here  (2 minutes)

Wi-Fi, AirPlay & AirDrop - Click Here (support & help pages / not videos)

Keyboard Shortcuts: Click Here (Includes ways to force restart.)

How to close an application/program on your mac:  Click Here