From Smart Mobs:
Visitors to Saturday night’s Amsterdam Museum Night may notice a barcode near various artworks. Those who take a picture of that barcode with their cellular and send it to the given email address will receive additional background information about the artwork.
The Amsterdam Historic Museum (AHM), the Rijksmuseum Amsterdam, Rembrandthouse and Nemo are among the six that participate in this barcodeproject. Each of them selected five objects.