On the evenings of April 1 and 2, 2011, prominent buildings across North America and the world — including the Empire State Building in New York City and the CN Tower in Toronto, Canada — will turn their lights blue to raise awareness for autism and to commemorate World Autism Awareness Day on Saturday, April 2, 2011. For more information, visit www.autismspeaks.com

Sponsored by Autism Speaks, their goal is to light the world blue all throughout April — city by city, town by town — by taking action to raise autism awareness in our communities.

Blue light bulbs can be purchased at Home Depot. And Light it Up Blue logos are availabe from the Autism Speaks website for Facebook and your blog or website.