There are currently two mailing lists where you can accessibility related help from the community:

GNU:

Register: lists.gnu.org/mailman/listinfo/accessibility
E-Mail: accessibility@gnu.org
 

RedHat:

Register: www.redhat.com/mailman/listinfo/blinux-list
E-Mail: blinux-list@redhat.com
 
There is also a list of project related accessibility mailing lists:
 

Orca screenreader:

Register: mail.gnome.org/mailman/listinfo/orca-list
E-Mail: orca-list@gnome.org

BrlTTY screenreader/ braille driver:

Register: brltty.com/mailman/listinfo/brltty
E-Mail: BRLTTY@brltty.com

Speakup screenreader

Register: linux-speakup.org/cgi-bin/mailman/listinfo/speakup
E-Mail: speakup@linux-speakup.org