Edmodo is a free and secure social learning network for teachers, students and schools. Edmodo provides classrooms a safe and easy way to connect and collaborate, offering a real-time platform to exchange ideas, share content, and access homework, grades and school notices.Accessible online and from any mobile device via free smart phone applications, Edmodo has grown from a teacher tool into a district-wide resource as word of the free online service spreads through schools around the world.

This guide to Google+ explains the various features of the service. It is updated periodically so that it stays abreast of the current feature set.

Celly social networks—called cells—are social building blocks that can work alone or link together to adapt to any social terrain.Celly empowers you to assemble networks and related subnetworks of any size, shape, or complexity.Create social harmony for any part of your life— family, friends, neighborhood, school, community, business, government, events, and movements.