I'm not sure if you're interested in community blogs or not, but fbomb is a pretty good blog run by teenage feminists. There are a lot of personal stories written on there, so you can get to know the backgrounds and opinions of particular contributors. posted by twoporedomain at 9:57 AM on October 28 [1 favorite has favorites]
I really like The Fanatical Fan. The girly stuff makes me laugh, and her insightful analysis of all things Sabres is nothing short of brilliant. posted by Jinkeez at 10:11 AM on October 28
ERV is amazing, particularly when she shreds HIV deniers posted by zentrification at 11:26 AM on October 28
Matriarchal Script Paradigm is a good script-review blog by a 21 y. o. woman — not sure there's much lifestyle stuff there though. posted by nicwolff at 1:52 PM on October 28
Style Rookie's Tavi is even younger-- she's been writing since she was 12; now she's 13.
Both are fashion blogs, but both girls have become pretty well-known in the blogosphere.
posted by oinopaponton at 9:18 AM on October 28 [1 favorite has favorites]