GPG keys

My gpg key (stats) is

pub   4096R/0xE352D5C51C5041D4 2010-08-29 [expires: 2016-05-12]
uid                 [ultimate] Iain Lane <iain@orangesquash.org.uk>
uid                 [ultimate] Iain Lane <laney@debian.org>
uid                 [ultimate] Iain Lane <laney@ubuntu.com>
uid                 [ultimate] Iain Lane <iain.lane@canonical.com>
sub   4096R/0x3164B4440081D441 2011-10-23
sub   4096R/0xEADF33C8637B94C4 2013-05-13 [expires: 2016-05-12]

Full armoured public key here, and also on the keyserver network:

$ gpg --keyserver hkp://keyring.debian.org --recv-keys 0x1C5041D4

Signed mail is preferred generally.

Signing

I'm generally happy to sign keys, providing that I have some idea of who you are, and (if I don't know you well enough) that you can convince me of such with some (usually government) identification.