Control over emails, also has variable insertion. Extra options inside the actual script for the advanced user. Limit the amount of results on searches and user display section. Send yourself a test before mailing the whole list. File Locking feature helping use cougalinks safely.
Administration has help on each feature built into the script.
As with all my scripts cougalist comes with an extremely helpful readme file which allows the experienced users or the beginners complete instructions on how to set up cougalinks quickly. The F.A.Q. section is not quite finished yet though, please bare with me.