All very exciting for those of us who don't have Readex and want to browse the collections of the AAS. There is advanced searching too within GIGI.
|Search for broadside in GIGI (C) American Antiquarian Society|
Album cards; Billheads; Broadsides; Christmas cards; Civil War envelopes; Currency; Election Ballots; Invitations; Membership Certificates; Menus; Postcards; Ream Wrappers; Sheet Music; Trade Cards; Valentines; and Watch papers from Graphic Arts, and Trade catalogs from Books. There are also hundreds of prints.
The AAS blog also has posts about ephemera (e.g. the recent post about Irish ballads for St. Patrick's Day) and a very active Twitter account: @AmAntiquarian