Besides reading academic blogs: Google's Book Search.
Controversy aside, it's a terrific tool for conducting research in books, and one that even my students probably won't shy away from once I introduce them to it. I especially like that they don't need to go through an authentication process to access it, as they do to use the university's library databases—a process that, I think, confuses a lot of students and keeps the lazier ones from using the library website, even though they can access it from home.
I've been using Google Book Search as a citation database. Type in your favorite author or cultural critic, and you can see who cites them and in what context. Of course, this means that the amount of money I spend buying books online is about to skyrocket, as I keep discovering great new books outside my usual disciplines. . .