As more transparent software develops, I'm sure my teaching will shift, but the expectations for good work will not change. My students contribute to the evaluative process in that they evaluate each other's work. I have a handout with space for comments that students produce for each project, including their own. But the best way I have found to evaluate web work is to have students evaluate themselves. It's called portfolio assessment, and it's changed the way I think about evaluation and grading.
Portfolios enable students to address their learning in terms of process rather than products.
Students consider all elements of their learning in the context of the course goals and their own work. Here is a description of portfolio assessment, which is based on Dr. Margaret Syverson's guidelines . I have found portfolio assessment to be a rewarding experience as a teacher, because I have access to all the learning involved. I encourage you to consider portfolio assessment as an option for evaluation in the composition classroom. I would like to go into more detail, but that's another topic for another article.