Eileen F. Schiffer has a useful article over at Faculty Focus about time and workload management in the online classroom. Schiffer points out:
Establishing a regular presence in the online classroom, grading assignments and discussions, and maintaining records and notes from term to term are all time consuming – but essential – tasks. Learning to take care of the details of online teaching more efficiently makes it possible to be more effective in your teaching.
She provides some useful insight into managing offline content (but used to support online courses), the use of rubrics, and providing student feedback.