The Joint Digital Archives 
e•phem•er•a noun (plural) [f. Greek eph mera, neut. pl. of eph meros]
1. anything short-lived or ephemeral
2. printed matter of passing interest, esp. pamphlets, tickets, photos, memorabilia, etc.
3. items designed to be useful or important for only a short time
Item Groupings for Libraries--" Fanwood Memorial Library