The business card thread reminded me of another item I brought up at a weekend workshop there a couple years ago. Getting a phone number for the chapter. If you can put up with the privacy policy, Google has a phone service at http://google.com/voice. You can get a free phone number which gets forwarded to your existing phone. It can go to multiple phones too. There's an voice mail transcription feature too. The main advantage is you can keep the same phone number when the contact person changes.
Outgoing calls to the US and Canada are free through 2012. You start the call through their web site, it calls you, then makes the outgoing call.