GCF - Google Drive Videos
This site offers a series of videos to learn about Google Docs and the apps on Google Drive.
Google Docs Tutorial Slide Show
This is a slideshow teaching you how to use Google Docs.
Google Docs Tutorial For Beginners - Video
This is a 10 minute video for Google Docs beginners.
Google Apps Learning Center
This site gives a step by step how-to for using Google apps.