HailStorm Whitepaper: "Microsoft will operate the HailStorm services as a business. The HailStorm services will have real operational costs, and rather than risk compromising the user-centric model by having someone such as advertisers pay for these services, the people receiving the value – the end users – will be the primary source of revenue. HailStorm will help move the Internet to end-user subscriptions, where users pay for value received."