Computer supported collaborative learning (CSCL) has the potential for significantly improving undergraduate education. However, there are many challenges for institutions, instructors and students in achieving effective collaboration that actually improves learning. Two of the most critical are achieving teacher buy-in and motivating students to participate in a knowledge-building community. We have developed a new CSCL tool whose flexibility is inspiring good teachers to create exciting new collaborative learning activities, and whose persistence is an enticement to students. We are now attempting to use this tool to leverage a particular kind of educational reform goal: achieving integration across curricular boundaries.