To contact Andrei, you may want to write him email (address is his first name @erdani.com). Better yet, to stay informed about Andrei's work and whereabouts, choose one of the contact methods to the right. You are warmly invited to follow Andrei on twitter or to join his Facebook subscribers or fans.

Andrei's work address at Facebook's headquarters is:

Facebook, Inc.
1601 Willow Road
Menlo Park, California 94025
(650) 853-1300