I have been compiling a city list of each member's cities. I have made this available on Google Docs so it can be viewed by anyone[in our alliance] who wants to. You can open the list in another tab for easy reference during game play.
The sole purpose of this list is so we can help each other by sending troops, supplies etc. When it's complete we can ask for help by city name and not by coordinates to make it more difficult to be attacked.
I've been sightseeing and going through attack reports to locate everyone. The X & Y post in the forum has info that is too out of date to be of much use. PM ing your coords to me will get you the Google Docs link in reply. I check all coords first to make sure you're a current Nova member.
I'm also putting together a Nova enemies list consisting of removed members and of people/alliances that attack us. This will be available to all members who want it.