By contrast, The Wall Street Journal and the New York Times are working with test iPads, according to people familiar with the matter. Six advertisers, including Coca-Cola and FedEx, have agreed to advertise with the Journal, and a four-month ad package costs $400,000, according to these people. Coke and FedEx declined to comment on terms. The Journal plans to charge subscribers $17.99 a month for iPad subscriptions, according to a person familiar with the matter.