Bradburyville is a new town (for want of a better word, and no doubt there is a proper word for it) in Second Life. There were some opening events yesterday, albeit too late in the day for UK residents to enjoy, but the place remains open for you to wander around and explore. The landscape is dotted with familiar Bradbury places: a place to get dandelion wine, a carousel, a porch where you can just sit and swing. The most shocking element is Mr Electrico's electric chair. If you see it, think twice before sitting!
Second Life requires you to register and adopt a fictional identity. It also requires you to download the Second Life client, which is around 34MB.
I spent some time in there yesterday, but didn't have time to explore thoroughly. It was slightly deserted when I visited, but I did see someone I knew. Although, of course, he looked different, being an avatar.
The following link will take you there, and provides further instructions if you haven't a clue what I'm talking about!