A number of people contributed places to find book trailers via OZTL_NET. Here they are in one place:
TrailerSpy – thanks to Ruth Buchanan.
Twilight # 2 – New Moon (Stephenie Meyer) thanks to Ruth Buchanan.
CMIS trailer Tuesdays thanks to Judi Jagger.
Whitefriars College book trailers
Jacketflap thanks to Barbara Braxton
On the topic of book trailers, local teen publisher Ford Street have a set of YouTube ads created by a fan who loves making trailers:
My Private Pectus by Shane Thamm
Trust Me! edited by Paul Collins, foreword by Isobelle Carmody
The Spell of Undoing by Paul Collins
Before the Storm by Sean McMullen
Finding Home by Gary Crew, illustrated by Susy Boyer
Ice-cream man by Jenny Mounfield:
Crossing the Line by Dianne Bates:
They Told Me I Had To Write This by Kim Miller
Sean McMullen speaks about Before the Storm
As with anything you show students, please remember to vet all book trailers first.