ReadWriteWeb

Roofarena is basically the Million Dollar Homepage concept built as a graphical layer on top of Google Maps. The idea is that any roof in Manhattan is for sale and users can "virtually" purchase a roof and add their own design. In a post about copycat ideas last year, we advised that if you "do feel the need to borrow an idea, you should definitely make changes and try to innovate and push the concept in new directions." Roofarena definitely does that, but we also advised that you do something to "ensure a greater chance of success" -- we're not sure that the site does that.