11/09/2013 08:42 BST | Updated 11/09/2013 08:45 BST

September 11th Anniversary: How The Internet Reacted For 12th 9/11 Memorial

As one of the most memorable dates of the calendar September 11 is always marked by people remembering the terror attacks on New York's twin towers.

In the era of social media, the way people remember the fateful day has changed as these pictures taken from Twitter show.

Here's a selection of the most poignant images around the internet.

Photo gallery 9/11 How The Internet Reacted See Gallery