That data is often used by media companies to track how many ads they deliver and to bill advertisers. They should have solid balance sheets, generate abundant free cash flow the amount of cash profit left after the capital expenditures needed to maintain the business and be run by capable, honest executives who are skilled at allocating capital. Billions more, in the form of premiums collected by Berkshire’s insurance units, including Geico, pour in steadily. For example, besides tracking whether ads are viewable or command attention, advertisers are looking for help in tracking people across different devices and different media vehicles, she said. Join the Conversation. Meanwhile, demand for dental services tends to remain stable regardless of the economic environment. Store Podcasts Log in Search Close.