We seem to have gotten a bit stuck here without a specific assignment. Posting on the blog can be a way to respond to assigned readings, to ask if other people thought that it was as bizarre or interesting or boring as you did. It can also be a way to try to jump-start class discussion; I’ll always look at the blog at some point the morning before class, which means that it’s a good way to introduce ideas before-the-fact.
But you don’t have to focus on things course-related. If you come across something that you think might interest others in the class, toss it on up.