If you aim to communicate encrypted with one of my at KaiBurghardt.de-addresses via e-mail note that I only accept MIME/encapsulated messages. Most MUAs should do the trick. In my opinion pasting armored GPG-messages into the mail-body is only a workaround as they mean an immense grow of efforts reading your messages.
Due to compatibility reasons ~kburghar/pubkey.asc points to the current gpg-key. This will be replaced by ~kburghar/gpg/pubkey.asc while years pass. Please point for further references to the new version.