"YouTube is a significant, for-profit organization that has built a lucrative business out of exploiting the devotion of fans to others' creative works in order to enrich itself and its corporate parent Google. Their business model, which is based on building traffic and selling advertising off of unlicensed content, is clearly illegal and is in obvious conflict with copyright laws." Sumner Redstone's Viacom, from the text of the media conglomerate's $1bn lawsuit against the Mountain View search giant, sounds pretty implacable. But someone forgot to send the memo to the 83-year-old tycoon's other media business. CBS, the TV network where Redstone is also chairman, just agreed to share March Madness clips on Google's video sharing site, and split the advertising revenue. Oops.