'Targets' are the people and/or organisation(s) you are directing your actions at to either change their position on an issue, or support them in their position.
You need to create Targets before you can navigate to and select them. For instructions see: http://www.fairsay.com/labs/ectool/docs/BasicSetUp#step-2-add-a-target-person-or-organisation
For help finding the Targets that already exist, see Reference Browser