Symbaloo Tile Dashboard
One of my favorite tools when I want to use a quick tile based dashboard. It was great options and features and also has the option to be used as you main browser page.
As defined on Symbaloo.com: is a personal startpage that allows you to easily navigate the web and compile your favorite site all in to one visual interface. Save your bookmarks in the cloud and access them from anywhere with any device.
Take a look this introduction video: