Quest Atlantis -- For elementary teachers, another way to reach kids using a research based approach of questing in a world of science, math, art, literacy, ecological concerns, and social justice - Quest Atlantis. I used it in my grade 4 classroom for 3 years as a part of my general project based approach. It is way more than a program installed on computers, it is a teacher facilitated, worldwide venue for global awareness and learning. Comes at no charge as it is a research project via Indiana University; participants only need to sign a consent to participate form. I also use this in my teacher education classes to expose pre-service teachers to new methods of engaging learners using technology. Fosters collaboration, problem solving, creativity, peer helping, especially with reading. There is a network of QA teachers who share their experiences on Facebook, blogs, and wikis.
Quest Atlantis Main site: http://atlantis.crlt.indiana.edu/
Steven Caldwell (Australia) recently made some intro videos - here is one, which is Part 2. Many others are available on YouTube (Sasha Barab, Principal Investigator).
Western Illinois University