The migration of highly skilled or qualified personnel in large numbers has a long history. It can be traced back to the era of the Greek philosophers and has continued up to the 21st century, with the technocrats who have transferred their skills across geographic boundaries. Economic opportunities, political change, cultural interests, and global capitalism have narrowed boundaries, bridging hitherto separate worlds. Intellectual migration around the globe has indeed become common. Trends indicate continued migration, calling for more inquiries into the phenomenon. Those interested must ask not only why migration occurs, but also how it occurs and who participates in it.