The Birthday Reminder SharePoint Web Part works with a SharePoint employee/contact list and sends notifications about birthdays within a predefined period of time.
The product allows you to set up the notification recipient's email, the period of time when the notification should be emailed and the text of the notification message. Also the "Birthday Reminder" product has a special web part that allows you to view a list of employees with their photos and easily track the coming birthdays within a week, month or a several months period.
Download this free web part here