Feeling Nostalgic, another Tip of the Tongue Heated Debate from the Aperture/Art+Commerce series, will examine "photographic" holdovers that still have sway in the digital age. What should photography keep from its analog past? What do we do with prints? Where is digital imaging and online sharing taking the industry? Moderator Charlotte Cottong, head of cultural programs at Art+Commerce will put these questions to panelists such as photographer Sze Tsung Leong, whose book History Images was voted one of American Photo's 10 Best Photo Books of 2006.