There a new exhibit of Grateful Dead memorabilia in N.Y. See the article and related links below:
Archive and Historical Society Exhibition for Grateful Dead - NYTimes.com
Souvenirs From a Long, Strange Trip - The New York Times > Arts > Slide Show > Slide 1 of 12
The Dead Live On - Interactive Feature - NYTimes.com
The Greatest Show Ever? - Interactive Feature - NYTimes.com