"Dos and Don’ts for Providing Effective and Efficient Feedback in the Online Classroom" (online article; pdf) provides 16 strategies (8 "dos," 8 "don'ts") for giving efficient online feedback under the following headings:
- Nature of feedback (3 points)
- Time management (4 points)
- Emergent technologies (5 points)
- Alternative approaches (4 points)
Note: Many of the points are applicable to the general process of giving feedback as well.