Getting Started with Google Drive: Great documentation and interactive tours from Google.
Meet the new Google Drive!
If you open drive and it doesn't look quite like the one above, we suggest you switch to the new view of Google Drive (Since you'll be forced to at some point anyway). Find the gear in the upper right corner of Drive and click on Experience the New Drive.
Google Drive Videos (Drive 101 topics)
Here is the entire
Google Drive playlist from our Youtube channel
Sign into Google and find Google Drive
The New Drive (as of Fall 2014)
Creating Documents, Autosaving, and Revision History
Share a Google Document
Chat and Comment in a Google Doc
Incoming Files (Shared with Me) and moving shared files to My Drive
Upload Files into Drive (Note: this is unnecessary if you use Drive for Desktop as described below)
Convert Office files to Google Docs
Organize Files and Docs
Searching for Files in Drive
Collaborating and Sharing Docs in Google Drive (online)
Using Google Drive on your Desktop
Edit Microsoft documents without downloading from Google Drive online
Automatically save Microsoft documents without creating multiple copies