The most reliable way to contact me is via email at firstname.lastname@example.org. Normally I will answer within a day. Sometimes I am just not reachable for a few weeks. In this case you should receive an automated reply.
My public key can be found on the keyservers (for example at https://pgp.mit.edu). The keyID is 727324EF.
I no longer use the 1024 bit versions from 1998 or 2001.