Celebrating its 30th anniversary in 2010, the Wedding & Portrait Photographers International (WPPI) announces today that registration is now open for WPPI 2010, billed as the largest annual expo and conference in the world for professional photographers. All WPPI 2010 classes, events and trade show will take place at the MGM Grand in Las Vegas, NV, from March 4-11, 2010. Registrations are accepted via the website below.