FHGEN 242 Introduction to Family History, Part 2: Analysis of Research Evidence

The Immigrant Ancestors Project, sponsored by the Center for Family History and Genealogy at Brigham Young University, uses emigration registers to locate information about the birthplaces of immigrants in their native countries, which is not found in the port registers and naturalization documents in the destination countries. Volunteers working with scholars and researchers at Brigham Young University are creating a database of millions of immigrants based on these emigration registers.

ShipIndex.org tells you which books, magazines, and online resources mention the vessels you're researching. With 142,804 entries in the free database and 1,865,071 entries available with premium access, you're bound to find useful information here.