Maintain linked Facebook contacts between flashing ROMs?

[dshosu]

So a while a go I went through and linked a bunch of my contacts to their corresponding Facebook accounts. I couldn't do it automatically because I don't use complete first and last names for my contacts. After all that I synced them with Google and thought all was well and proceeded to flash another ROM. After I flashed the new ROM i resynced my contacts with Google and lost all of the Facebook information.

Anyway, so I went back through and relinked the Facebook accounts to their contacts. Now I'm thinking about flashing another ROM but I want to know if there's a way to backup the Facebook contact links?\

Thanks in advance