Atom had three brands - AtomFilms, Shockwave and AddictingGames which together had over 40m monthly active users. AtomFilms w ... as one of the first and largest online video companies and was the YouTube of its day. Shockwave was the largest game brand on the internet and was complemented by AddictingGames which was the fastest growing casual games website. Investors included Macromedia/Adobe, Warner Bros, Arts Alliance and Sequoia Capital (Michael Moritz) who was the largest investor. Company was acquired by Viacom for $200m in 2006. read more