Today DZone release a new Refcardz for Ant: Getting Started with Apache Ant.
This DZone Refcard will provide you with the perfect resource to help you automate software build processes with Apache Ant. Included is a description of the Anatomy of an Ant Script along with a number of tables detailing, among others: Core Java Related Tasks, Infrastructure Tasks, and SCM Related Tasks.
It is well laid out (like all the Refcradz) and covers the latest Ant release – 1.8.