If you have no idea what this is, read the short introduction I have written. If you just want my key, look here.
I write 'gpg key' as GNU Privacy Guard is the software I'm using, but most rfc2440 compliant implementations should be able to use this key to verify my signatures and send me encrypted email. However, there are two things that make some other OpenPGP key implementations choke on it:
The first is that I have added a photographic user id to my key - after all, the key belongs to me and not just to my email adresses... As some keyservers still don't accept keys with photoids yet, the key you may find that there is no photo on my key, and that the keyserver only contains an outdated version of the key.
The second problem is that my key has more than one subkey - an encryption subkey and a signing subkeys for every location where I use gpg. To find out more about this please read my subkeys mini-HOWTO.
You can retrieve my public key (id is 92082481) here. This is the full key with all bells and whistles - all subkeys, the photoid, and all signatures. Should you have problems importing this key into your software, please drop me a note, and I should be able to provide you with a stripped down version of the key.
There are also some older keys I've made, please do not use them any more (although they are not compromised to my knowledge). Should you find any non-revoked copies lying around, please notify me and/or the operator of the site where the copy is located.
In most cases, when somebody signes my key after having verified its authenticity, I have also verified the other persons key and signed it. The "signed" subdirectory contains the keys I've signed, stripped to only contain self-signatures and those I made.
Some people publish the fingerprint of their key on their website or in their email signatures. Publishing the key fingerprint on this web page along with the key does does not add any security, though: an attacker replacing my key will also think to adjust the fingerprint.
Publishing the key fingerprint on every email adds some security: the fingerprint is widely spread (especially when postings are made to Usenet newsgroups or mailing lists), so a potential attacker would have to replace the fingerprint in all these places, which is usually not feasible. But I'd like to remind you that real security is only to be gained by meeting face to face and exchanging fingerprints (or keys) directly - after all, the guy with the key fingerprint in the email singature could be an impostor...