This list has been set up to help members of the Stereoscopic Society of America (SSA) to communicate easily with each other. SSA is affiliated with NSA and membership in NSA is required to be a member of SSA. This list is open to members and non members alike, who wish to communicate quickly and efficiently with other subscribers to the list. SSA is a non-profit organization, allowing its members to circulate their stereo images through postal folios or the Online Folio.