High Quality Content by WIKIPEDIA articles! Atomic Mall is a multi-seller online marketplace based in Yakima, Washington. It was launched in July 2008 by founder Mike Shannon, who had previously worked as an independent software publisher and distributor, and had developed and operated private ecommerce sites in the retail sector. As of June 2010, Atomicmall.com hosts over 45,000 established members, roughly 1/4 million active product listings, and nearly 8.4 million total items for sale with an aggregate market value approaching a quarter billion dollars.