For general announcements about the eagle-i web applications, new releases, and developments; this list will keep you in touch with high-level news.
http://open.med.harvard.edu/mailman/listinfo/eagle-i-announce
For eagle-i early adopters, this list is used by people trying out eagle-i to share initial assessments and deployment experiences
http://open.med.harvard.edu/mailman/listinfo/eagle-i-earlyadopters