See Appropedia:Service learning for more detail on Appropedia's service learning programs.
Service learning is a teaching method, which combines community service with academic instruction as it focuses on critical, reflective thinking and civic responsibility. Service-learning programs involve students in organized community service that addresses local/global needs, while developing their academic skills, sense of civic responsibility, and commitment to the community. Here service learning is focused on applied sustainability.
Service learning using Appropedia
Your class or your personal research project can be involved with creating new content on Appropedia, on topics, or describing projects you are carrying out. Then, rather than assignments sitting unused on a hard disk, they become part of a structured, useful set of knowledge for humanity, available to all online, distributed through OLPC's XO (a.k.a. the $100 Laptop), as well as through offline distribution. Knowing this motivates students and teachers alike.
Translating content is another form of service learning. A Clarion University student project involved a collaboration between the physics department, which routinely uses sustainable technologies to teach physics, and the department of modern languages and cultures, chaired by Dr. Eleanor ter Horst. Students wrote and translated in the languages they were studying, and were inspired by the experience.