INFINEON RACEWAY SONOMA, CA April 14, 2010 Autism Speaks, the nation’s largest autism science and advocacy organization, announces that the 5th annual Sonoma Walk Now for Autism Speaks fundraising and awareness event will take place on Saturday, April 17, at Infineon Raceway. All event proceeds will support Autism Speaks’ work to increase awareness about the growing autism epidemic, fund innovative autism research and family services, and advocate for the needs of individuals with autism and their families.