Alex Chapin is an Educational Technologist at Middlebury College specializing in technologies for second language acquisition. Currently he has been collaborating in CodeLab in development of a number of open source curricular systems including the Segue Collaborative Learning System and systems for managing digital assets, assessments and knowledge bases as well as a standards-based framework and architecture for building database-driven web applications known as Harmoni. He has received a grant from the National Institute for Technology and Liberal Education (NITLE) that supports some of this work. He is the multimedia designer of "Fluent Tibetan: The Vocabulary and Dialogues," a CD-ROM for learning Tibetan. Jin Zhang is a lecturer in Chinese at Massachusetts Institute of Technology.