Google Script: Enterprise Application Essentials: 
How can you extend Google Apps to fit your organization’s needs? This concise guide shows you how to use Google Scripts, the JavaScript-based language that provides a complete web-based development platform—with no downloads, configuration, or compiling required. You’ll learn how to add functionality to Gmail, spreadsheets, and other Google services, or build data-driven apps that run from a spreadsheet, in a browser window, or within a Google Site.
