Are you tired of scanning through hundreds of books to find the necessary information for your college thesis? Maybe you want to find an old newspaper article that talked about a new (at the time) discovery of a planet? Go to Archive.org.
This website, created in 2001, provides you with all the necessary tools to know everything that has appeared on the web. It is an internet library aiming to offer permanent access to researchers, historians and everybody else texts, images and much more that exists in digital format for free. To gain access to some of collections site you may need a password, but filling the database with your data and by proving your good intentions, you become a member and a password will be given to you and you will be able to navigate freely. The site also provides you with moving images, music, audio and the best of all, you will be able to view websites and what they looked like a couple of years ago. 
