I found The Clique girls really immature after a while, but if you're in 7th grade or younger, I see why you'd like them. (Not trying to say you're immature, but the girls in the book are about your age, if not older than you)
If you want to take a step up from the Clique, try reading the Gossip Girl series. They don't really follow the show, but I like the books soo much better than the show. I read the books first, and I honestly can't stand to watch the show, it's that bad compared to the books.
Another series I like is the it-Girl. I'm reading those right now, they're about Jenny Humphrey from Gossip Girl, and she's at boarding school. Most of it is just girl and boy drama, but they're sooo good.
I also like the A-List. I haven't read these in a while because I took a break from book reading, but they're like the others- just about rich kids and they're drama.
If you don't want to read about high class people, try looking for books by Sarah Dessen. She writes fictional stories about teenage girls who go through extremely realistic problems, most of them involving boys- actually, I haven't read one yet where the girl hasn't fallen in love with a guy. One of them called "Someone Like You" is about two girls who are best friends, the more outspoken one finds out she's pregnant after her boyfriend gets killed in a motorcycle accident, and the other one who's more quiet falls in love with a guy who leads her down a bad path in life. Another one by Sarah called "Dreamland" is about a girl who starts dating a guy and he eventually becomes abusive. It's a great book, it tells how she gets into and out of her sticky situation. I suggest finding some of those at Borders in the Young Adult section!
