American Memory Collection - http://memory.loc.gov Created by the Library of Congress, this national site documents America's history using words, sounds and pictures.

American Social History Project - http://www.historymatters.gmu.edu This national website is a compilation of primary documents and curricula, and is designed for high school and college teachers of U.S. History courses.

The Bronx Historical Society - http://www.bronxhistoricalsociety.org/index86.html  A research library specializing in the Bronx.

The Brooklyn Historical Society - http://www.brooklynhistory.org/ A nationally renowned urban history center dedicated to the exploration and preservation of documents, artwork and artifacts representative of Brooklyn's diverse cultures past and present.

Center for Urban Pedagogy - http://www.anothercupdevelopment.org. A New York City-based group that specializes in educational projects about places and how they change.

City Lore - http://www.citylore.org To learn about other programs and publications of this co-founder of Place Matters.

City of Chicago Landmarks Site -http://www.ci.chi.il.us/Landmarks/Tours/Tours.html  The landmarks section of Chicago's official city website where users can view maps, browse sites and take virtual tours based on an extensive database of architectural, cultural and historical landmarks in Chicago.

Ephemera Press - www.ephemerapress.com Producer of NYC culture maps (Queens jazz trail, East Village, Harlem Renaissance, Lower Manhattan history)

Forgotten NY - http://www.forgotten-ny.com Documents what creator Kevin Walsh describes as the "forgotten, overlooked and ancient sites of New York City."

The Gotham Center for New York History - http://www.gothamcenter.org/ the Gotham Center's goal is to boost the visibility-for citizens, tourists and students-of New York's badly under-appreciated and under-developed historical assets. Offers conferences for scholars and educators.

The Greater Astoria Historical Society - http://www.astorialic.org/ A cultural and community-oriented organization dedicated to preserving the past and promoting Long Island City's future. The Society hosts field trips, walking tours, slide presentations, and guest lectures to schools and the public.

The Greenwich Village Society for Historic Preservation - http://www.gvshp.org Promotes the preservation of Greenwich Village and environs through advocacy and programs.

Historic Districts Council - http://www.hdc.org An advocate for New York City's historic districts and neighborhoods meriting preservation.

The Historic House Trust of New York City -- http://www.historichousetrust.org/ Preserves and promotes historic houses located in New York City Parks.

Labor Arts - http://www.laborarts.org This "virtual museum" gathers, identifies and displays images of the cultural artifacts of working people. The website's mission is to help people understand the past and present lives of working people.

The Lower East Side Tenement Museum - http://www.tenement.org Promotes tolerance and historical perspective through the presentation and interpretation of the variety of immigrant and migrant experiences on Manhattan's Lower East Side, a gateway to America.

Municipal Art Society - http://www.mas.org To learn about other programs and publications of this co-founder of Place Matters. 

Municipal Art Society Planning Center - http://www.mas.org/PlanningCenter/ Helps community organizations and neighborhood advocates confront the planning, land use and economic development issues facing their neighborhoods

The Museum of Chinese in the Americas (MoCA) - http://www.moca-nyc.org/ First fulltime, professionally staffed museum dedicated to reclaiming, preserving, and interpreting the history and culture of Chinese and their descendants in the Western Hemisphere.

The Museum of the City of New York - http://www.mcny.org Provides special online features, and information about museum exhibitions and programs.

My Citi - http://www.myciti.org A project of the Municipal Art Society Planning Center (see above), the goal of CITI is to provide community-based organizations with maps, data and technical assistance to support local planning efforts. Use this easy portal for mapping your NYC location and accessing other important data.

The National Council for Preservation Education http://www.preservenet.cornell.edu Nationwide network of over 60 education programs, representing over 200 faculty and about 1200 undergraduate and graduate students.

The National Park Service - http://www.cr.nps.gov This auxiliary site of the National Park Service integrates America's cultural resources (buildings, landscapes, archeological sites, ethnographic resources, and more) within their respective histories.

Also noteworthy is the National Register of Historic Places site at http://www.cr.nps.gov/nr that provides information on agency programs, while also providing engaging exhibits and curricula.

National Trust for Historic Preservation - http://www.nationaltrust.org An important source for information and policy about historic preservation.

Neighborhood Preservation Center - http://www.neighborhoodpreservationcenter.org New non-profit created to provide resources (such as office space, administrative support and information) to support public efforts around improving and protecting New York city neighborhoods.

New York City Landmark Preservation Commission http://www.ci.nyc.ny.us/html/lpc/home.html The city agency that implements the New York City Landmarks Law.

New York Historical Society - http://www.nyhistory.org The Society's library is an important research facility for New York City history.

New York Landmarks Conservancy - www.nylandmarks.org. Helpa owners of older buildings by providing grants, low-interest loans, hands-on consulting services, workshops, and publications. Also see on this website the Conservancy's Endangered Buildings feature: http://ebo.nylandmarks.org.

The New York Public Library - http://www.nypl.org A major center for scholarly research with an extensive collection of periodicals, special collections, geneology and New York City history.

Place In History - http://www.placeinhistory.org/ Place in History's mission is to bring together individuals with a diverse range of backgrounds - including urban planners, architects, historians, artists, educators and community members - to create collaborative projects which explore urban themes from multiple perspectives.

Preserve & Protect - http://www.preserve.org Notable for its preservation alerts and useful resources, Preserve & Protect hosts the websites of many New York City preservation organizations, accessible from the main homepage by clicking on "Websites" and "Supported Websites."

The Preservation League of New York State - http://www.preservenys.org/ A statewide organization that is dedicated to the protection of New York's diverse and rich heritage of historic buildings, districts, and landscapes.

Preservation League of Staten Island - http://www.preservesi.org/plsi.htm  Since its organization in 1977, The Preservation League of Staten Island has devoted its time, energy and resources to identifying, fostering an appreciation for, and supporting the preservation of Staten Island's historic built environment through a wide variety of activities.

Project for Public Spaces - http://www.pps.org New York-based non-profit offering technical assistance, education and research support for citizen-based efforts which "sustain and create public spaces that build communities" all over the world.

Queens Historical Society-  http://www.queenshistoricalsociety.org/index.html  A local history research center based in the historic Kingsland Homestead that presents lectures, exhibits and educational programs.

REPOhistory - http://www.repohistory.org  "To retrieve and relocate absent historical narratives at specific locations in the New York City area through counter-monuments, actions, and events. The work is informed by a multicultural re-reading of history which focuses on issues of race, gender, class and sexuality. We choose to create public art because we wanted to expand the audience for art by going outside the confines of the museum and gallery structure."

South Brooklyn Profiles - http://southbrooklynprofiles.org/index.html Personal exploration by the website author of the diverse places and people of South Brooklyn.

Story Corps - http://storycorps.net/ A national project to instruct and inspire people to record each others' stories in sound.

Trust for Public Land - http://www.tpl.org/index.cfm Conserving Land for People is this organization's motto. Website features provide information on programs, useful policy reports, and other resources.