WebmasterWorld has a very interesting thread taking place named Award Winning Sites or Problem Sites?. A upset Web site owner saw a company build several sites that basically run off the same data set (probably same database) but have a different design and layout to them.
We have all seen examples of this while shopping online. One example is: FootLocker.com & EastBay.com. See both their product landing pages for "Jordan Men's Air Jordan XII Retro Low" sneaker, FootLocker.com & EastBay.com. Not only do those pages look almost exactly the same, so do the homepages.
Brett Tabke, quickly defends the this practice as stating they have "done an outstanding job of building out quality sites and promoting them in a leading edge manner. They represent some of the best that the promotion world have to offer and I will not hesitate to reward that quality work by purchasing from them again soon." "They are all unique and quality sites," Brett said.
However, not everyone at the thread agrees. Check out the thread here.