Internet Archive is described as 'The Internet Archive is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, it provides free access to researchers, historians, scholars, the print disabled, and the general public' and is a very popular Ebook Library in the news & books category. There are more than 25 alternatives to Internet Archive, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet apps. The best Internet Archive alternative is Wayback Machine, which is free. Other great sites and apps similar to Internet Archive are Z-Library, Anna’s Archive, Library Genesis and Project Gutenberg.
This site is not good, as it's basically just a blog site and doesn't let me archive sites.