Other
Gdrc: Collaborative Learning
This site provides a thorough introduction to collaborative learning including terms and definitions, benefits of collaborative learning, strategies, tools, methods and making collaborative learning work.
Georgia State University
Georgia State University: Enabling Student Collaboration for Learning
Presented in a question and answer format, this site provides some useful information about student collaboration. Some of the questions answered are "why should students collaborate" and "how do I get students to collaborate".
Other
Global School Net: Collaboration in the Classroom and Over the Internet
This is a good resource for learning how to collaborate with other classes over the internet. This article provides good advice for how to get the most benefit out of your collaboration efforts whether they be in the classroom or over...