WebCite maintains the legal position that its archiving activities[1] are allowed by the copyright doctrines of fair use and implied license.[2] To support the fair use argument, WebCite notes that its archived copies are transformative, socially valuable for academic research, and not harmful to the market value of any copyrighted work.[1] WebCite argues that caching and archiving web pages is not considered a copyright infringement when the archiver offers the copyright owner an opportunity to "opt-out" of the archive system, thus creating an implied license.[1] To that end, WebCite will not archive in violation of Web site "do-not-cache" and "no-archive" metadata, as well as robot exclusion standards, the absence of which creates an "implied license" for web archive services to preserve the content.[1]