Monster Vault: Threats to the Nentir Vale is now available in a lot of places, a bit ahead of schedule. You'll find all kinds of great monsters and organizations ready to throw into your Nentir Vale campaign, or any locale of your own devising. My co-authors are Brian James, Matt James and Steven Townshend.
Along with many of the monsters, I designed the swamp map contained inside (though I didn't do the art). The black dragon and the lizardfolk on the cover are also mine, story and stat-wise. They would be Shadowmire and his Witchlight lizardfolk underlings. If you're a D&D Insider subscriber, check out my tie-in adventure, Battle of the Witchlight Hermitage, just released TODAY, to see these guys in action. It uses the the swamp map as well.