First published on June 27, 2014
During my research, I will list in here the web locations where I found
useful content and I will briefly describe what interesting things I
found from there.
Apart for the websites that I consider very useful, and that are placed in here, I created a page called Reciprocal Links where I can exchange links with other websites. They are not necessarily websites I endorse, but I check every of them before adding them to the list.