The GVSHP (Greenwich Village Society for Historic Preservation) is one of a few wonderful organizations that offer up great little archives of old New York images, and their collection just expanded with around 500 digitized photographs from the 1960s through the 1990s. The collection is titled "Carole Teller’s Changing New York," and mainly brings you through the artist's East Village neighborhood (and surrounding areas) over those four decades.
A rep for the GVSHP tells us all of the images are now online (view them here), and offer up "an incredible story of change in New York over the last half century... [Teller] had a keen and prescient eye catching things on the verge of change, erasure, demolition, restoration, or renewal."

36 St. Mark's Place, south side, just west of 2nd Avenue, next to Gem. (Photo by Carole Teller, courtesy of GVSHP)
Prints of the images are for sale, with proceeds benefitting GVSHP. Click through the above photos for a preview of the collection, featuring images from the 1960s, '70s, and '80s.