Meliahna -- be sure to check out the Rush forum here on GC, as it will help you out with tons of things you want to know.
As for information on specific sororities, I know this is probably not what you want to hear, but you'll be able to figure it out during rush. And I would recommend waiting until then to try and figure things out, too. There have been plenty rushees who have gone into rush thinking that there is only one sorority for them, and when that sorority cuts them, they drop out of rush. (Or they go into rush thinking one sorority is for them, but they realize they don't actually like that sorority when they meet the girls in it.) Rush is really the best way to figure out what each sorority is all about and which one's best for you.
(But I know that you're impatient . . . I felt the same way last summer before I rushed.

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