To install my key via the CLI, issue this command:

gpg --recv-keys --keyserver keys.gnupg.net 649AB73C

You should always verify the key next. To do this, first edit it:

gpg --edit-key 0x649AB73C

You will enter a mini CLI. First obtain the fingerprint:

fpr

This will provide an output such as this:

pub   2048R/649AB73C 2010-11-30 Matt Day <[REDACTED]>
 Primary key fingerprint: 1B69 7F7D 74DD FC84 9688  E2C1 AA81 3C67 649A B73C

You should telephone me, or email me with a challenge (to prove I am me) asking for the above fingerprint before assigning trust to my supposed key. Once you have ascertained that it's definitely me, sign the key:

sign

It may ask you to confirm your intentions, do so and quit:

quit

You can now be sure that PGP communication between us is secure.

Other ways to get my key

You can also view it in plain text.

Here it is in full:

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v1.4.10 (GNU/Linux)

mQENBEz0wKQBCADcEUaF5FZLB2Vt9WbqV+Us/BSjNUO2/U/4yqNmD/VZqFYyQze+
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B6+cJKvEtee6nTZf6tEYMbW0OhZikQ+MopGE28HMc8U3TVv0Ch9fHqgNtJphQM2r
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h+C25q+4K5CR0rEYB1Ei5RFnk1q//AEO/fC0s+Uba1c4v//N8kQLhuYklVEcMDG+
Pfv/9RtskgS1rDs7YzFE7yGZjQpptTlqZMI5MgBxUtgY2w0dwcgTFv3dWN3werQ3
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ZWsuY29tPokBOAQTAQIAIgUCTZ29egIbLwYLCQgHAwIGFQgCCQoLBBYCAwECHgEC
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DKlpVOfJz0l0o9moPnjb8VlIY2CY2WKfkJ7JiYZpJjnDNIxKkwrczVNuNRVgqhuo
FyeLcBDnKlrp8p9bzFPShkt6IOpwnX1v2vYat115F1TTwrkBDQRM9MCkAQgAwTbQ
38iOnXvFQ9d909EPluFN/DZ8jCP3yREwxmZ4fXUiep/dZ/lX4UNsuTq6dYECFVlB
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GAwV/Z9yZlbUTCEqgONLFjcJGMIydVmK7bK7MXumOSCRRI7PDxOzpcxLmivcFzwu
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0YlguqKShJEI/WdA0vVjtyG/VQ==
=jzMc
-----END PGP PUBLIC KEY BLOCK-----