I realize that my students will be audiences for each other's blogs and that in itself will be motivating, as will the newness of the format. However, there is a different sort of delight from having someone you don't know read and respond to your work. I want them to experience that., so I sent off a few emails.
I heard back from colleagues in Minnesota and they can see way during the busy month of May to have their students comment on my student's blogs.
I may have also found another resource. In his blog, Jim November shares the following helpful information...
I've Got Mail: "An authentic audience has made a difference in my writing. You can make a difference with your students by helping them publish their writing. They too can share the joy of getting feedback. Help spread the joy by joining other educators who have volunteered to give feedback to K-12 students on their writing. I have about 50 educators who are willing to spend fifteen minutes a month giving feedback to students. All you have to do is when a teacher request feedback for her/his students is to go to their blog and write two or three sentences about one students writing. If your busy that week you don’t have to give feedback, wait until the next request. To volunteer to give feedback to students, send an e-mail to firstname.lastname@example.org and put feedback in the subject line. As part of the group you can also request feedback by sending an e-mail to the same address."