ElectoralMap.net has been active and providing election forecasts since 2008. The look and feel of the site has changed only twice during that time, with the latest update done in response to the rise of mobile devices. A tiny, handheld screen with only a finger as an input device limits the amount of data that can be displayed and how a user can interact with it. The older sites may not work as you expect on a mobile device, as they were designed for a desktop browser with a mouse.
Here you will find links to the past versions of the site for US election years.