Advertisers have a wide variety of ways of presenting their promotional messages, including the ability to convey images, video, audio, and links. Unlike many offline ads, online ads also can be interactive.[20] For example, some ads let users input queries[74] or let users follow the advertiser on social media.[75] Online ads can even incorporate games.[76]
In 2009, Bluehost introduced a new feature called CPU throttling. CPU throttling (at Bluehost and similar hosting services) refers to the process of reducing user's CPU usage in whenever the particular user is pulling "too much" server resources at one time. At that particular time, Bluehost would freeze (or drastically reduce) client sites' CPU usage substantially. This effectively shut down clients' websites hosted on the Bluehost server for several hours throughout the day.