A Technical Revolution: Social Learning and Networking [From the Guest Editors]

The past decade witnesses the emergence and popularity of online social Web sites, blogs, instant messaging systems, and media-sharing networks. The resulting trend toward social learning and networking creates a technological revolution to industries, brings new experience to users, and profoundly changes our daily lives. Increasingly, people use the Internet as a social medium to interact with each other and expand their social circles, share information and experiences, and organize communities and activities.