Footers are no longer seen as a meek part of design that takes birth as an afterthought; they are being thought of at the very beginning of the design process along with other major sections. So, it can be said that a lot of thought goes in designing footers too, and as we know that with thoughts, questions often come along.   See more - http://fatbit-tech.weebly.com/1/post/2014/04/questions-to-be-answered-before-designing-footer.html