Career-related Website

I must begin for say I love read books, but in this country these are very expensive because that I download almost all books that can. I would like have all books for one hand for the university and as for passion. Then my favorite career link really is a blog, a download blog of differents books, all oriented to medicine or sciences. The link is http://libros-medicos.com.ar/. And the other website wich is usefull in subjects like production is www.sag.cl . The first link know because always search download links, and the second a few years by the subject “ introduction to veterenary” where they named it. Both links I see once a week the first more for Entertainment, like i said love read books, and with more passion to have them that for my career, and the second because all the years have some subject where the production it becomes present.