If you are an instagram user, we add photos there using @dublinghostsigns & we are also using the #DublinGhostSigns hashtag there.
There is also a Dublin Ghost Signs flickr group which anyone can add photos to.
Dublin Ghost Signs is on Historypin, which is a digital, user-generated archive of historical photos, videos, audio recordings and personal recollections.
The Facebook page for Dublin Ghost Signs is under-represented at the moment, but content will be coming there soon.
If your preferred method of contact is via email, the address is dublinghostsigns [at] gmail [dot] com or use the contact form below: