Internet
Most mainstream news sites were deluged with traffic on September 11th as users sought out information on the attacks. As a result many sites had to radically alter their layouts. Partly this was done to provide the most efficient means to inform the reader. Emphasis was placed on showing the chronology of the attacks, list statements by President George W. Bush and others, and to give updates to federal closers and responses. All other news stories and sections that once appeared on the sites were temporarily removed as they were irrelevant and most likely not wanted by the reader given the gravity of the 9/11 story. These changes may also have been done to reduce the bandwidth needed to load a page. CNN.com and MSNBC.com all but removed the photos, video, or audio features once heavily featured as a means to cope with the extreme traffic demands placed on their servers. Ads were also largely removed out of respect of the attacks and as a further means to reduce bandwidth demands.
Over time the news sites returned to a state of normality, but most would go on to feature stories on the attacks and on the resulting War on Terror in sidebars or boxes.
Read more about this topic: List Of Entertainment Affected By The September 11 Attacks