Link, link, link – Is your site accessible?

I am blind, and use Job Access with Speech (JAWS) software which converts text into speech and braille enabling me to use a Windows computer or laptop, (http://www.freedomscientific.com/products/software/jaws/). One of the problems I face when navigating the web is the lack (on some sites) of clearly labelled sharing buttons. For example I have lost count of the number of occasions on which I have come across something along the following lines:
Link
Link
Link
Link
(with none of the links bei...