The Friendship Ring Series by Rachel Vail

Tomboyish, 12-year-old Zoe is friends with everyone in seventh grade, even the boys. She's never wanted a best friend, until now, as she tries to win over quiet, serious CJ.

Twelve-year-old CJ, an accomplished ballet student, struggles with her conflicting desires to continue her ballet study and please her mother or to quit ballet and finally be like all the other kids in school.

As she waits to present the ten items that she has chosen for an assignment to represent who she is, seventh-grader Morgan Miller recalls the events in her life that led to her choices

Olivia is baffled that her friends have turned into blithering idiots obsessing over boys, clothes, and who's in and who's out. But then it happens. She develops a crush on Lou Hochstetter. Even worse, Olivia's new friend Morgan thinks Lou is a total nerd. What are friends for, anyway?

In the fifth book in the series, downtoearth Zoe Grandon competes for the office of class president and the approval of all her friends. Original.

Tommy and Zoe have been friends forever, but when his friends begin to tease him about being in love with her, he must examine his feelings to find the truth.