Working through chapter 4 with express.  But stopping for the moment to work through a book on lower-level node...less middleware, more node.js itself.  In the end, there is so much middleware that is amazing and I will most likely use that instead of reinventing the wheel each time, but I think it is good to know the details of Node itself to make it less of a "black box."  And of course, if I want to make my own middleware some time.