Anyone out there play World of Warcraft?

I'm more of a follower when it comes to raiding on World of Warcraft. However, I'd like to play more of a helpful/active role in the guild. Does anyone know what farmable items is most helpful for raids? Flasks, food items, etc. Or even know where I can get more information about stuff like this so that I can be of more help? I just feel like I go to raids and just sit there and click and heal (I'm a priest). Don't get me wrong, I'm a good healer... But I feel like I'm left out on most of the battley-type lingo. I'm the only girl in the guild, so I feel like I'm just there as decoration. Anyone have any ideas?