You can get in direct contact with the debexpo team. In case of technical problems please check the Q & A section and the Debian wiki first. Please do not use this contact address for sponsor requests or packaging questions, write to the debian-mentors mailing list instead or file a RFS bug respectively.
Site email: firstname.lastname@example.org.
Currently Asheesh Laroia (paulproteus), Paul Wise (pabs) and Arno Töll (daemonkeeper) are maintaining this service.
We are looking for new contributors. If you want to contribute or improve mentors.debian.net, come to #debexpo on irc.debian.org and chat with us.