I feel like shit guys. I've been looking for some books and I found them on two sites: the first site is made in 2006 by some old man who died back in 2012. There are a few pics of him and a few students he lectured when he was a teacher back in 2004. He was very happy and thanked them for helping to create the site.
The second site was made by some girl. It was mostly math problems discussion and she was really friendly and helpful. I visited her personal page and there was a message there that she died in some accident in 2011.
The weather is extremely shitty and I feel like shit because of these good people deaths