http://cck11.mooc.ca/ Connectivism and Connective Knowledge is an open online course that over 12 weeks explores the concepts of connectivism and connective knowledge and explore their application as a framework for theories of teaching and learning. Participation is open to everyone and there are no fees or subscriptions required. Advertisements
https://www.reddit.com/subreddits/ Reddit acts like a virtual bulletin board where you can share, connect with others, and facilitate discussions that matter to you.
Connect a million minds In 2009 Time Warner Cable (TWC) launched a new philanthropic initiative, Connect a Million Minds (CAMM), that challenged parents, mentors and others to connect over one million students to after-school STEM activities to address the “inspiration gap”.
http://www.ushahidi.com/ Today Ushahidi’s mission is the change the way information flows in the world and empower people to make an impact with open source technologies, cross-sector partnerships, and ground-breaking ventures.