XPMonitor allows you to create XP bars for guildmates also running the addon. Useful for groups that are leveling together, or for keeping track of guildies you're boosting through quests or instance running.
/xpm create <player name> - create an xpbar for a player
/xpm createall - create an xpbar for all non-level capped, logged on players
/xpm createbar <player name> - display a player's xp using your reputation bar
/xpm delete <player name> - remove a player's xpbar
1.2 - Update for compatibility with 5.4 and fix the "invalid" faction IDs being now that characters could potentially have enough factions to cause issues
(uploading a file without OS X junk in the zip)
1.1b - Add /xpm clearbar option to stop using the reputation bar (may not reset the bar for some players; if this affects you, open the repurations tab on your character screen, select a faction, and check/uncheck "Show reputation bar"). Also fix an error with "/xpm"