Ask the Google Gooru - Excellent site for learning all things Google.
Visit the Google Calendar Help Center for more information on Google Calendar
Visit the Google Mail Help Center for more information on Google Mail
Labs - “extras” for your inbox - Useful Labs include Preview Pane, Canned Responses, Multiple Inboxes, Undo Send, Mark as Read.
Set up email delegation - You can delegate access to your Mail to another person so they can read, send, and delete messages on your behalf.
Advanced search operators - finding and sorting email using search operators
Need a third party App to organize and sort your mail? Try Mailstrom. Sort mail by sender, date, subject, size and more.
Helpful Extensions and Apps
Spell Checker extension for Chrome. It's easy to use and fast. This extension supports 12 languages for spell check.
GMail Label Column Resizer - User script that allows the labels column in Gmail to be resized
Take a look in this shared folder for some handouts and basic information on Google Apps for Education.