Request for hints with Arduino

New to Arduino, December 2012: Analog pins can be used as digital pins A0, A1 etc. Analog pins can drive servos A0 - D14, A1 - D15 etc.

For those of us new to the platform; would those who have been around for a while, pass on other nuggets of information you may have come across similar in nature?

Larry

It's a pretty general question, but you are welcome to browse this:

http://www.gammon.com.au/uno