This document discusses tools provided by Google that can be used for 21st century learning. It highlights Google Docs, Spreadsheets, and Presentations which allow for real-time collaboration. Examples are provided of how teachers can use these tools, such as having students add pulse rate data to a shared spreadsheet during a science lesson or sharing unique traits about themselves in a shared document. Other Google tools mentioned include Custom Search, Google Maps, Google Groups, YouTube and KNOL. The document emphasizes that these tools allow information to be accessible from anywhere and enable collaboration.