I just received my copies of the book Metametaphysics: New Essays on the Foundations of Ontology, which I co-edited with David Manley and Ryan Wasserman. The book grew out of the ANU conference on Metametaphysics in 2005, followed by the Boise conference on the same topic in 2007.
There are 17 papers in the book, by a superb group of authors: Karen Bennett, Matti Eklund, Kit Fine, Bob Hale and Crispin Wright, John Hawthorne, Eli Hirsch, Thomas Hofweber, Kris McDaniel, Huw Price, Jonathan Schaffer, Ted Sider, Scott Soames, Amie Thomasson, Peter van Inwagen, Steve Yablo, and me. The papers include definitive statements of many of these authors' view, and I think that a number of them are going to be very widely discussed.
The book looks fantastic -- thanks to OUP for doing a great job with it. Special thanks also to David Manley who did the bulk of the editorial work that made the book possible. Ryan and I did various things, but David wrote the superb introduction, co-ordinated the review process, prepared the index and proofs, and did much else besides. A lot of work, but I think the result suggests that it was worth it.