Make friends with your visitors
It is the next step in site redesign which to enable your visitors to opt-in to customize the appearance of site view using an innovative Drag and Drop user interface. It definitely allows visitors to feel like they design the website and it increases the possibility of your site being their homepage.
They use JoomPlace Drag&Drop Component:
Here are more examples of sites using Drag and Drop functionality:
Do you use the same component? You are welcome to the list of users. Just leave a couple of words and your link in comments below and share your expirience for Joomla! extensions directory visitors.