Internet Archive Scholar is a fulltext search project initiated by the Internet Archive (blog post).
The service proposes to become a
fulltext search index includes over 25 million research articles and other scholarly documents preserved in the Internet Archive. The collection spans from digitized copies of eighteenth century journals though the latest Open Access conference proceedings and pre-prints crawled from the World Wide Web.
This is a new service [in beta]. Metadata is being improved and features have not been finalized.