As every ELL teacher knows, having a classroom collection of hard copy bilingual books can help with instruction and especially help Newcomers begin to get comfortable with the school environment.
You can find a fair amount of multilingual online materials at:
“Best” Lists Of The Week: Useful Multilingual Resources
“Best” Lists Of The Week: Resources For Reading Instruction
Here are some places to order actual bilingual books – and please let me know what I’m missing:
Amazon’s Best Sellers in Children’s Multilingual Books and their Bilingual Books section.