Knightless is having the same problem I'd guess quite a few players have -- her interest in her character is flagging a bit, and she's trying to figure out a way to get more involved in what she's doing in Azeroth. This is an interesting situation, because at this point, with almost any other game, the player would just leave and go find something else to play (and actually, I can say from experience that sometimes taking a short break from the game completely can rebuild your interest in it), but things don't really work that way in World of Warcraft -- responsibilities to your guild and the people you've met in game will keep you around even when your interest is low.
So what tips can we offer Knightless and others who are looking for ways to refresh their interest in the game? Rerolling is a big one -- I've always found that picking up a new class you've never played before can get you to look at a game in a different way. Running an instance that you haven't run in a while is always fun, too -- it only takes a little while to level up a character to Deadmines or Wailing Caverns levels, and both of those instances always renew my interest in playing through Warcraft. Running guild activities or contests are always fun, too -- especially since Knightless is a guild officer, she could organize some lower level runs or some "grind days," where guildies all get together in groups to level each other up.
Any other ideas for reviving a flagging interest in playing a character that you feel a need to play due to responsibilities or other connections in the game?