Opportunities for collaboration are the internet's greatest gift; they are especially valuable for teaching and learning. Collaboration models workplace activities, helps students to construct knowledge, enhances students' understanding and appreciation of diversity, and may give students a sense of belonging online. Perhaps most importantly, collaboration allows students to interact socially and develop a feeling of community in online courses, bridging distances that otherwise separate them. Yet, many online educators remain unsure of why, when, and how to introduce collaboration in their online classes. With 8 papers, including a summary of Sloan-C resources, this volume provides help with collaborative activities.

• Online Collaboration: Introduction to the Special Issue
• Facilitating Collaboration in Online Learning
• Online Collaboration Principles
• A Study of Students' Sense of Learning Community in Online Environments
• Assessment and Collaboration in Online Learning
• Achieving Diversity Through Online Inter-Institutional Collaborations
• Quality Matters: Inter-Institutional Quality Improvement for Online Courses
• Collaboration Online: Sloan-C Resources