Pinterest is a visual bookmarking tool that helps you discover and save creative ideas. Watch this two-minute video to see how it works. http://about.pinterest.com/
Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.
Facebook is a popular free social networking website that allows registered users to create profiles, upload photos and video, send messages and keep in touch with friends, family and colleagues.
Instagram is an online mobile photo-sharing, video-sharing and social networking service that enables its users to take pictures and videos, and share them on a variety of social networking platforms.
Google+ launched in June 2011 as a social network. Google executives subsequently described Google+ as “a social layer across all of Google’s services”, allowing them to share a user’s identity and interests.
LinkedIn is a business-oriented social networking service. Founded in December 2002 and launched on May 5, 2003, it is mainly used for professional networking. In 2006, LinkedIn increased to 20 million members.