Urbanography
- Gregory J. Christiano describes New York City in 1857 with two opposing police forces and street gangs staging bloody riots. Includes an illustrated description of the Five Points district where crime flourished.
- http://www.urbanography.com/

History of New York City: Gotham and the American Dream
- Course Page for Fieldston's History of New York Course. Includes syllabi, timelines, multimedia resources such as slides, primary sources, and interactive historical walking tours of New York City.
- http://www.mapsites.net/gotham/

City Legacy
- Literary magazine focused on history and culture of the city. [Requires registration.]
- http://www.citylegacy.com/

New York and Its Origins
- Compares historical events of the European settlement of Manhattan against the legend, profiling Usselinx, Minuit, Hudson, and other prominent figures. Also available in French and Dutch.
- http://users.skynet.be/newyorkfoundation/

The Gotham Center for New York City History
- New York City history organization, with calendar of events, resource directory, links to history-related sites, information for K-12 teachers, and discussions about the city's past.
- http://www.gothamcenter.org/