LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...

Twitter is without a doubt the best way to share and discover what is happening right now.

foursquare

Ask questions, give answers and learn more about your friends.

Brands of the World is the world

Middlebury College, in Vermont, is one of America

IEEE Xplore. Delivering full text access to the world

PUC Minas on academia.edu

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...