Instructors can request a course blog via the EdBlogs service:
https://www1.columbia.edu/sec/ccnmtl/remote/edblogs_request/ (UNI required).
When requesting a course blog, please provide course section key so that registered students can be automatically be affiliated with the course blog. The section key uniquely identifies a course and includes year, semester, course, and section information. This key can be found in the Columbia University Directory of Classes. Sample key: 20133ENGL3956W001. Posting the blog URL in CourseWorks is also recommended.
Additional EdBlogs documentation can be found here: