Yeah, it's a brand new world, and I have no idea what the etiquette is.
My conundrum: The e-mails back from the Library Thing people have slowed to a trickle...so at what point do I start assuming that the addresses for those who haven't replied aren't good and trying to reach people through their profiles? Will it be nagging if I do it now? If I wait a few more days, will I start getting nasty notes about how I didn't fulfill my giveaway? Does the fact that it's holiday season alter the math at all? Show your work.
I realized today that if I messaged people privately through their profiles, I could just give them the Smashwords coupon code, and I would be finished with this (they can contact me if they want a file, of course, but that's on them).
Of course, the exact moment I was writing a message to the first person, she e-mailed me. Whoa.