Take a look at these:
http://www.galleryfeeder.com/display.php?niche=Uniforms
http://www.galleryfeeder.com/display.php?niche=Teens
http://www.galleryfeeder.com/display...he=Schoolgirls
GalleryFeeder is a tool for webmasters that allow you to manage 1000s of FHGs from all your affiliates from one easy control panel. You can find more sponsors & sites for your School Girl niche too.