The ninjette.org (http://www.ninjette.org) member map can be found right here (http://www.ninjette.org/forums/showthread.php?t=11545). Check it out to find other nearby ninjette owners, and add yourself up there as well!

EDIT: The map was useful as this forum grew, but hasn't been updated/functional for years after the website we were using changed their terms.