Blackboard has taken another step toward making the next version of its course-management system work alongside open-source competitors. The company announced today that it is working with Iowa State University to create a software plug-in for the company’s course-management system so that it can integrate with Moodle, a popular open-source alternative. The move comes just three months after the company announced the creation of a similar connection tool for Sakai, another open-source course-management system.