[Porsche Chick]

Here's a link to the National Highway Admin. You can use the pull-downs and select your car and see all the service bulletins that Porsche issued on your year/make. Takes a minute to load, then you can click through to see the actual documents.

Not sure if it's particularly informative, but thought I'd throw it out there.

Made me consider taking mine in for another check up while it's still under warranty. . .

http://www-odi.nhtsa.dot.gov/owners/SearchVehicles