devcheatsheet.com: Cheat sheets for developers - many program languages, markup languages, query, libraries / frameworks, operating systems, version control, servers, databases, etc.
Playable fictions are interactive stories in which one is positioned as a protagonist who makes game choices that have consequence in the fictional world. Further still, we often find ourselves engaging in struggles and developing understandings that shape player's worldview outside of the game.
The EcoMUVE project at the Harvard Graduate School of Education is a recently funded project of the United States Department of Education's Institute of Education Sciences (IES). The goal of EcoMUVE is to develop a Multi-User Virtual Environment (MUVE)-based ecosystems science curriculum for middle school, and to conduct feasibility studies on the practicality, integration, and acceptance of the MUVE-based curriculum for student engagement and learning in classroom settings. MUVEs enable multiple participants to access virtual worlds simultaneously, interacting with other students and with computer-based agents to facilitate collaborative learning activities of various types.
Top 100 Learning Game Resource list. If you are already developing learning games, these links will broaden your horizons, as they did mine. If you are contemplating beginning - it might help to look at links that interest you to get some grounding ideas.