Progressive profiling is a technique in Eloqua that reduces form abandonment by collecting contact information over multiple steps. It allows marketers to display only a few fields initially and then show additional fields on subsequent pages. The new method in Eloqua is easier to use than the previous Cloud Connector method, as it requires no extra login and can be configured directly in forms. Marketers can specify the number of fields displayed and whether to randomize them to present contacts with new fields each time.