query: good under-18 fanfic sites?

A friend of a friend thinks her high-school-age daughter might like slash, and asked for some recs. What do all y'all suggest? I'm thinking of pointing them toward the G and PG categories of Multifaceted and to Yuletide, but your suggestions would be much appreciated -- particularly if you know of any quality sites or comms specifically for the under-18 crowd and/or for people completely new to fandom. (Especially since I don't think it's going to be the last time I get asked this question.)

Thanks in advance!