On LesPAC.com:
The "Email Alert" tool allows you to be quickly notified of new ads published on the site. You'll receive daily emails containing the latest published ads corresponding to each of your alerts. These ads are generated by the criteria you selected when creating and saving your searches. To activate your alerts, you must check the box under the "Email Alert" column in your Search Management page or click the envelope to the left of the search name in "My Searches."