Look at everyone else's bios (except for Admiral's, because his characters can't be just happened upon) and you'll see "Contact Information".
That's in case you want your characters to seek out or "accidentally" come across someone else's characters, which is of course the best way to get more involved in the plot of the RPG
edit: What I'm trying to say is, can one of my characters contact your characters? Or would you rather that not happen? ^.^