@publicdomain has tweeted Moby Dick on Twitter, in 140-or-fewer-character updates. It took 9½ months and 12,849 updates – around 45 a day. And yes, a robot was doing the tweeting.
This project is a brainchild of Dan Coulter (@danco). Coulter has set up a poll to see which public domain book will be tweeted next. I voted for one of my favorites, Alice in Wonderland. I am glad to see it leading in the early results.