Photographers who have pictures of UK and Ireland signs, however old, can contribute them to the History of Advertising Trust (HAT) Ghostsigns Archive in the form of a gift. Details of how to do this can be found on this website. If you have any questions about the process please email email@example.com.
There are a number of other ways to get involved with the Ghostsigns Project. You can add photos from all over the world to the Flickr group, upload them to the Facebook page, send them to Twitter with the tag #ghostsigns or add them to History Pin with the tag ghostsigns. If you are interested in volunteering to offer more involved support then please contact me via firstname.lastname@example.org