All pages on this web site are PGP signed, not as a separate .sig file, but inside the HTML code itself. To verify a page signature, you simply need to verify the signature on the source code. (view source + [ctrl+shift+d] with PGP default shortcut.
With GnuPG, you can run GPG --verify [html file]
As part of my GIAC/GSEC certification, I wrote a "practical" titled: A corporate implementation of PGP
My current PGP key can be downloaded here, the fingerprint is :
1072 EF2A 9D16 4C00 09D9 2B58 27F2 587A B300 7919
The previous one (not to be used) can be found here and it's fingerprint is:
A39B 2F9A 0412 BACC D418 AD2C B41E C5E1 6AD2 7772
Last update : 15 Apr. 2003