Searching for articles is very critical sometimes using Google, yahoo, etc. I used to have a free access to more than 50 databases via my University account but now as I finished school I lost the free access. I need to have such flexible and free access to articles, specialized in ecology and environmental studies. Can anyone suggest a site I can use to access articular for free? I know some websites offer such access but only for universities or academic institution, in this case I can register for my institution.