AIAA is the shaping, dynamic force in aerospace - The forum for innovation, excellence and global leadership.

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...

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

worldbank.org - The World Bank Group offers loans, advice, and an array of customized resources to more than 100 developing countries and countries in...

YouTube is a place to discover, watch, upload and share videos.

Prezi is the zooming presentation editor

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The authoritative Collins dictionaries now available online. Search amongst hundreds of thousands of words and expressions in Spanish, French, German,...

Scribd is a social publishing site, where tens of millions of people share original writings and documents. Scribd