I will be at Balticon in Baltimore, Maryland (http://www.balticon.org/) from 28-30 May, and then at the World SF and Fantasy Convention (Worldcon) at Reno, Nevada (http://www.renovationsf.org/) from 17-21 August. I'll be on programming at both conventions, so I shouldn't be hard for anyone to find. My publisher is working on some other appearances in May to publicize the release of Dreadnaught. I'll announce that schedule when I know more.