Some of the icons have been downloaded from http://www.fatcow.com/free-icons.
They are licenced under Creative Commons Attribution 3.0 License.

These icons were as from October 3rd, 2013 the following:
fax.png
mail_black.png
phone-vintage.png
telephone.png

Some of the icons have been downloaded from http://somerandomdude.com/work/iconic/.
They are licenced under Creative Commons Attribution 3.0 License.

These icons were as from October 15th, 2013 the following:
socialmedia.png (former chat_alt_stroke_16x16.png)
home.png (former home_16x16.png)
mobile.png (former iphone_12x16.png)
link.png (former link_16x16.png)