The Internet Archive and Yahoo! conceived the Open Content Alliance (OCA) in early 2005 to offer broad public access to the world culture. The OCA also wanted to address the issues of the Google Book project, with its copyright issues and its availability from one search engine only. The OCA was launched with the goal of digitizing only public domain books and making them searchable and downloadable through any search engine. What exactly is the Internet Archive? Founded in April 1996 by Brewster Kahle, the Internet Archive is a non-profit organization that has built an "internet library" to offer permanent access to historical collections in digital format for researchers, historians and scholars. An archive of the web is stored every two months or so. In late 1999, the Internet Archive started to include more collections of archived webpages on specific topics. It also became an online digital library of text, audio, software, image and video content. In October 2001, with 30 billion stored webpages, the Internet Archive launched the Wayback Machine, for users to be able to surf the archive of the web by date. In 2004, there were 300 terabytes of data, with a growth of 12 terabytes per month. There were 65 billion pages (from 50 million websites) in 2006 and 85 million pages in 2008. The Internet Archive now defines itself as "a nonprofit digital library dedicated to providing universal access to human knowledge." In October 2005, the Internet Archive launched the Open Content Alliance (OCA) with other contributors as a collective effort for "building a digital archive of global content for universal access" (subtitle of the OCA home page) that would be a permanent repository of multilingual text and multimedia content. As explained on its website in 2007, the OCA "is a collaborative effort of a group of cultural, technology, nonprofit, and governmental organizations from around the world that helps build a permanent archive of multilingual digitized text and multimedia material. An archive of contributed material is available on the Internet Archive website and through Yahoo! and other search engines and sites. The OCA encourages access to and reuse of collections in the archive, while respecting the content owners and contributors."