On this forum, I (Bingham) post the regular emails I send to parents. In this way you can keep up with deadlines, class topics and common issues in helping your student succeed academically.
In addition, this is a great place for you to ask (publicly) questions about the class, grading... whatever. I check regularly and reply within a day or two. Also, feel free to interact with other parents as the issues are often similar.
You may find it useful to look through the archives to get a feel for past goings on and communications.