ESL & Native English Classmates Learning Together

http://anvil.gsu.edu/wrinkles/

In this example, weblogs are being used as a way to facilitate english as a second language learning. The main motivations in using blog technology seem to be that they enable simple web publishing for the students, and that they

"offer the possibility of further discussion and interaction from a much wider audience. This audience can respond to what the students have written by giving suggestions or simply commenting on their writing and the content. This acknowledges the students' efforts plus provides a motivating force."

This particular example comes from K-12; does it seem possible that such an exercise might work in a post-secondary ESL context? Do some of the pereceived 'benefits' of using blogs to facilitate this exercise seem like benefits to you, or could you achieve them using other mechanisms already at your disposal, without the associated risks? What do you think some of those risks might be?