The PKI Page
This page contains links to various sites and documents related to Public Key Infrastructure (PKI) material, especially links certificate authorities (CAs). (Stefan Kelm) http://www.pki-page.org/
The Open Source PKI Book
An attempt to register the available open source concerning PKI, and useful technical background info. http://ospkibook.sourceforge.net/
Digital Signature Links
Provide links to digital signature legislation, infrastructure initiatives, standards, certification authorities, and trusted third parties. (Juan Avellan) http://www.qmw.ac.uk/~tl6345/
NIST PKI Program
An initiative to coordinate industry and technical groups developing PKI technology to foster interoperability of PKI products and projects. (National Institute of standards and Technology) http://csrc.nist.gov/pki/
Dartmouth College PKI Lab
Project to develop inter-institutional applications. Includes related links, research information and results, and contact information. http://www.dartmouth.edu/~pkilab/
The Computer Science Directory currently has categories, which include links along with indexed pages.