Portions of this book originally appeared in Asimov's SF Magazine as
follows: "Lobsters" (June 2001), "Troubadour" (Oct/Nov 2001),
"Tourist" (Feb 2002), "Halo" (June 2002), "Router" (Sept 2002),
"Nightfall" (April 2003), "Curator" (Dec 2003), "Elector" (Oct/Nov
2004), "Survivor" (Dec 2004).