I think the knowledge management book I reviewed would work very well for some book clubs, but I'm afraid the book club I mentioned is at my company (specifically, in my work group). Otherwise, you'd be welcome to join. I've explained more about our book club in a new entry (http://www.sarahelkins.org/wordpress/?p=15).

I don't know of any professionally-oriented book clubs open to the general public. There probably are some online. Of course there are also many online places where books are discussed in general, but I think an organized book club that has a chapter-by-chapter focus can get a lot more out of a book than just general discussion does.