20 Digital I/O Pins - not 14?

I'm sure many users already know this but because the information is not very easily found, I thought I'd mention it here.

The Arduino board has 14 Digital I/O Pins and 6 Analog Input Pins.

However, the 6 Analog Input Pins can also be used as Digital Out (and In?) Pins. Naturally, these pins numbered 14 to 19 need to be declared as "pinMode(ledPin, OUTPUT);".

That makes a total of 20.

Hope someone finds this as handy as I have.

Cool, it needs a "sticky" somewhere, it gets mentioned occasionally now and then but I don't think there's an "official" reference to it.

A sticky would be good.

BTW, it is noted in a few official places, including these: http://www.arduino.cc/en/Reference/PinMode http://www.arduino.cc/en/Reference/Board?from=Guide.Board

But probably should be mentioned more visibly, and added to pages such as: http://www.arduino.cc/en/Reference/PortManipulation http://www.arduino.cc/en/Hacking/PinMapping168 http://www.arduino.cc/en/Tutorial/DigitalPins

A sticky would be good.

BTW, it is noted in a few official places, including these: http://www.arduino.cc/en/Reference/PinMode http://www.arduino.cc/en/Reference/Board?from=Guide.Board

But probably should be mentioned more visibly, and added to pages such as: http://www.arduino.cc/en/Reference/PortManipulation http://www.arduino.cc/en/Hacking/PinMapping168 http://www.arduino.cc/en/Tutorial/DigitalPins

Something big, like a banner on the home page would be good, and another one underneath it with a picture of a LED and the anode and cathode, I forever get them muddled up :-?