Code.org is a non-profit organization that promotes computer science education, particularly in U.S. schools. It launched the Hour of Code campaign in 2013, which encouraged over 100 million students worldwide to try learning basic coding for one hour. Major tech companies and their founders have donated $10 million to support Code.org's initiatives in bringing more accessible computer science education to students.

2. Code.org
is an organization and website that aims to encourage
people, particularly school students in the United States, to
learn computer science.[
They launched the Hour of Code 2013 challenge
nationwide to promote computer science during computer
science week until December 15, 2013.Major tech
companies and their founders, including Bill Gates and
Facebook’s Mark Zuckerberg, have put up about $10
million for Code.org.[
Tens of millions of students of all ages and backgrounds
have tried an Hour of Code. (103,129,089 last checked)

3. http://hourofcode.com
http://code.org