Rachel Baker, Photograph by Sadie Dayton

Bostonista: The Prodigy Wears Prada

Seventeen-year-old Olivia Fialkow of Newton wants to be clear about something. Yes, she has a blog; no, she’s no Gossip Girl. Since its launch in August, FRIENDS & LOVERS (naturegraffiti.blogspot.com) has covered fashion, concerts, and afterschool antics as seen through…