In determining what buildings will make it into my guidebook of 21st-century New York City architecture I've tried to see every building that I've researched in one form or another (online, in a book, in a magazine, from your suggestions). In my various treks about the city to do the above I've stumbled across buildings unknown to me, documenting them with my digital camera and then using sites like New York City's Department of Building's BIS or ACRIS or Curbed to search for relevant information on the building, particularly the architect.
Below are some of those buildings. A few are candidates for my book, but even the ones that won't make the final cut have led me to architects and buildings I wouldn't have found otherwise, and in turn I've found some gems that way. These are examples of how research is a back-and-forth mix of various media: digital, print, and of course direct experience.
Randall Early Childhood Learning Center by Craig Rhodes Architect.
Boerum Hill Lofts by Coggan + Crawford.
Wyckoff Townhouse by Sarah Jeffreys Design.
Salle Residence and Studio by David Fratianne Architect and Christian Hubert.
FDNY EMS Station 32 by Beyhan Karahan Architect.
3 Collister by BKSK Architects.
34 Debrosses Street by Handel Architects.
Orchard Street Residential Development by Ogawa/Depardon Architects.
Carriage House by Christoff:Finio Architects.
Gramercy 145 by Manuel Glas.
Number 5 by Philip Johnson Alan Ritchie Architects.
GAM MEE OK by Ji-yaang Kim/Paprika Space Design.
Pioneer Academy by PKSB Architects.