Computer Science Teachers Association (CSTA)

http://csta.acm.org/
http://blog.acm.org/csta/
http://csta.acm.org/Resources/sub/HighlightedResources.html
http://csta.acm.org/Curriculum/sub/K12Standards.html

Apple Distinguished Educators

http://www.apple.com/education/apple-distinguished-educator/

Black Girls Code

http://www.blackgirlscode.com/

Code.org

http://www.code.org

Code Club (UK)

https://www.codeclub.org.uk/

CoderDojo

http://coderdojo.com/

Computer Science Unplugged

http://csunplugged.org/

Constructing Modern Knowledge

http://constructingmodernknowledge.com/cmk08/

The Constructivist Consortium

http://constructivistconsortium.org/

Curriki

Free learning resources for the world.
http://www.curriki.org/

EdCamp

http://edcamp.org/

Engineer Girl

http://www.engineergirl.org/

Girls Who Code

http://www.girlswhocode.com/

Global Education Conference

http://www.globaleducationconference.com/

Google Apps Certified Trainer Program

http://www.google.com/enterprise/apps/education/resources/training-programs.html

Guardian Teaching Network (UK)

http://www.guardian.co.uk/teacher-network

Institute of Play

http://www.instituteofplay.org/
https://twitter.com/instituteofplay
http://vimeo.com/channels/qla
http://www.instituteofplay.org/work/projects/quest-learning-in-action/

Meetup (Hacking tag)

http://www.meetup.com/find/?offset=0&psize=64&currentpage=1&allMeetups=true&categories=&keywords=hacking&radius=Infinity

National Center for Women and Information Technology (NCWIT)

http://www.ncwit.org/

Random Hacks of Kindness

http://www.rhok.org/
https://en.wikipedia.org/wiki/Random_Hacks_of_Kindness

#Raspberry Jam

http://raspberryjam.org.uk/

Summer Code Party (Mozilla)

https://webmaker.org/events
https://wiki.mozilla.org/Mozparty
http://blog.mozilla.org/blog/tag/summer-code-party/

THAT Camp

http://thatcamp.org/