Address Book Privacy

Keeping up to date on the latest in security and privacy, we hear from John Carter. We had asked if putting Google or Yahoo or MobileMe to link to Address Book could in any way be something to avoid.
Here's his take on that.  .

 "If you frequently switch between Mac Mail and something like Google Mail or Yahoo Mail when you are away from home and you also frequently update your address book on one or the other, then synchronizing your address book across these platforms could make life a little easier for you.

"If you have a cell phone that you always carry with you, you could also keep your contact list updated between Mac Address Book and the cell phone Contact list and rely on your cell phone Contact list when you are not at home, which is what I try to do."