Digital Signature Guidelines

Digital Signature Guidelines is a publication on the American Bar Association website that is intended to assist anyone involved in online transactions that need to be secure and authentically signed.

Complete with a tutorial, the Guidelines (from the American Bar Association, Section of Science and Technology) explain digital signature technology in simple terms, and examine how this technology can be applied as a computer-based alternative to traditional signatures. Visitors can download copies of the book in WordPerfect or Microsoft Word format or obtain zipped copies of either format.
http://www.abanet.org/scitech/ec/isc/dsg-toc.html