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

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...

UNL - New University of Lisbon on academia.edu

Academia.edu helps academics follow the latest research.

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

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the worl...