ning

Ning
Ning is another free web application allowing users to create their own social network. Like Wikis, site owners can manage/approve users to join the network, add/moderate content, customize layout, and collaborate with accepted users (i.e., students). Ning now has an "ad free" environment for educators. Salem City Schools in VA adopted Ning for its faculty and stated that they are using Ning as a "tool for communication and instruction that harnesses the engaging power of social networking."

Examples
Middle school computer class High school - educators using Ning to create an online network

Learn More About This Tool
Short flash tutorial- how to manage a Ning site Ning Blog - how to tips, examples, and more