Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessori...

International Scientific Journal & Country Ranking

International führender Wissenschaftsverlag - Wissenschaft, Technik, Medizin, Architektur, Wirtschaft und Verkehr - Zeitschriften, B&#252...

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

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.

San Francisco - User Reviews and Recommendations of Top Restaurants, Shopping, Nightlife, Entertainment, Services and More at Yelp

The Committee on Publication Ethics (COPE) provides a forum for publishers and Editors of scientific journals to discuss issues relating to the integr...

Translation by Babylon is a free online version of Babylon

The Holcim Foundation for Sustainable Construction promotes innovative approaches to sustainable construction mainly through Awards competitions and a...

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

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