Web hosting companies and ISPs find themselves facing the decision of whether to adopt the application service provider (ASP) model. Pure-play ASPs focus on renting high-end applications, while some service providers simply layer automated Web-site and storefront management atop their infrastructures as they have done for years. More companies today adopt a hybrid strategy. E-business hosting firm HipHip Software has expanded into offering accounting and HR applications. It is still a hosting company to the extent that it sells and supports Web sites, but it outsources its own infrastructur