InteLex Corporation, founded in 1989, is a pioneer in humanities electronic publishing. The company's initial releases in philosophy were published on 360k floppy disks. InteLex moved to 720k disks, then 1.44 Mb disks, then to CD-ROM, and finally in 1996 to the Internet. Now InteLex publishes exclusively for web access. InteLex publishes in both TEI-conformant (Text Encoding Initiative) XML and full-text searchable image formats, using an enhanced version of the open source XTF platform developed by the California Digital Library.