Ancestry.com has just added Honolulu, Hawaii Passenger Lists, 1900-1953 – The Honolulu Passenger Lists consists of inbound vessel passenger manifests for the period February 1900 to December 1953 and provides a unique insight into non-traditional ports of entry.
There are many ships passenger lists online now for genealogists to search for their ancestors. Here are a few
Ancestry's Immigration Records Collection includes arrivals in New York (Castle Garden, Ellis Island), Boston, Philadelphia, Baltimore, New Orleans and more
For Canadian arrivals see Canadian Passenger Lists, 1865-1935 (Ancestry.com). Also see Canadian Passenger Lists Before 1865.
Outgoing Ships Passenger Lists from North America are found on Ancestry.com and Outbound Pasenger Lists on Ships Lists Online