A segment is a group of users created from your fan/follower list based on demographic or behavioural data. Segments can be set up in the Convert section under segmentation.
Segment can be used to customise the display of an application or to create notification campaigns.
You can build your segment, filtering your list by age, sex, or country.
You can also create a segment from your fan list using data from your website (clients, prospects, specific segments, etc.) from Convert.