The best way to reach me is via e-mail:
If possible, please use GnuPG/PGP (because we can). You can retrieve the current key from my web server or from a key server of your choice. Old keys are provided so you can still verify all signatures. However, please use the most recent key when sending me e-mail.
28F5 EC79 69B8 C320 0C5D 0F5E B3F9 DF99 E79F FBF2
Key for 2012, expired 2012-12-31
24A6 21EA 1387 38C4 09F5 C7B6 D8AC 2BFA EB1D 0698
Key for 2011, expired 2011-12-31
02CC BACF CFC5 6F9C CBAA 250B 842B 9351 AEA3 2EB3
Key for 2011 (1. quarter), expired: 2011-04-01
BA41 D2D7 4440 5EE2 4FC7 3BA2 0EC7 2794 F8B2 588F
For each key, there is an individual e-mail address. When a key expires, this address expires, too. Please keep that in mind.