This constant could be useful to other plugins.

src/com/massivecraft/factions/ExtractorFactionAccountId.java

@@ -23,7 +23,7 @@ public class ExtractorFactionAccountId implements Extractor
 		{
 			String factionId = ((Faction)o).getId();
 			if (factionId == null) return null;
-			return "faction-"+factionId;
+			return Factions.FACTION_MONEY_ACCOUNT_ID_PREFIX + factionId;
 		}
 		
 		return null;

src/com/massivecraft/factions/Factions.java

@@ -52,6 +52,12 @@ import com.massivecraft.mcore.xlib.gson.GsonBuilder;
 
 public class Factions extends MPlugin
 {
+	// -------------------------------------------- //
+	// CONSTANTS
+	// -------------------------------------------- //
+	
+	public final static String FACTION_MONEY_ACCOUNT_ID_PREFIX = "faction-"; 
+	
 	// -------------------------------------------- //
 	// INSTANCE & CONSTRUCT
 	// -------------------------------------------- //