Remixing College English is a very reflective blog authored by an instructor, not a student. (It was surprising difficult to find student blogs; I probably need to use different search terms: first year composition blog.) It’s a good model for my own reflective practice, but can also be a good model for students. It might be interesting for students to see their instructors wrestling with their classes.
A brief look at the entries, however, gives me the impression that these are not blog posts as much as lengthier, reflective entries. The entries are quite long, and they read as more polished and less spontaneous.