POETRY RESOURCES FOR TEACHERS AND YOUNG POETS
(Under construction)
Poetry Foundation has a section of children's poetry, children's video and articles about children's poetry.
The Poetry Society has a great education section with tons of resources (UK perspective).
Some picture books that could be used as examples of poetry writing:
WON TON (A Tale Told In Haiku) and WON TON AND CHOPSTICK - by Lee Wardlaw and Eugene Yelchin