I think this is new - maybe not many people are aware of this. You can
subscribe to an FAA service to send you AD's and Special Airworthiness
Information Bulletins via email. Go to http://rgl.faa.gov and enter your
email address. They have an extensive list of aircraft makes and models to
choose from, so you will only get the ones that interest you. I signed up
for all of our club ships.