a) Family Search wiki
Great article to help you learn more about New York immigration ports.
b) The Statue of Liberty - Ellis Island Foundation
The Ellis Island database provides access to the passenger arrival records of the people who arrived at the
c) Immigrant Ships Transcribers Guild
Transcriptions of over 16,000 passenger lists done by volunteers. Also has ship descriptions, etc.
d) The Olive Tree Genealogy
Includes ship passenger lists, info on Palatines, New Netherlands (NY) genealogy, and more. All free.
e) Palmer List of Merchant Vessels
(scroll down on the top window to search index.)
Free access to a database of information on 11 million immigrants from 1830 through 1892 who arrived in NY.