Position	Website	Change	Thumbnail
1	lenntech.com - Water Treatment and Purification - Lenntech Lenntech designs, builds and installs a wide range of odour treatment, water purification and air filtration products using UV, ozone, Ecosorb, drum f...	0
2	facebook.com - Welcome to Facebook 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...	0
3	chemicalelements.com - Chemical Elements.com - An Interactive Periodic Table of the Elements An up-to-date periodic table with detailed but easy to understand information	0
4	astm.org - ASTM International - Standards Worldwide ASTM International develops international standards for materials, products, systems and services used in construction, manufacturing and transportati...	0
5	linkedin.com - LinkedIn | Relationships Matter LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections t...	0
6	britannica.com - Encyclopedia - Britannica Online Encyclopedia Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sit...	0
7	youtube.com - YouTube - Broadcast Yourself. YouTube is a place to discover, watch, upload and share videos.	0
8	en.wikipedia.org - Wikipedia, the free encyclopedia	6
9	slideshare.net - Upload & Share PowerPoint presentations and documents	-1
10	chem.sis.nlm.nih.gov - Chemical Resources of the Environmental Health & Toxicology Information Program Product, Program, and Project Descriptions	0
11	ncbi.nlm.nih.gov - National Center for Biotechnology Information	0
12	cdc.gov - Centers for Disease Control and Prevention CDC Centers for Disease Control and Prevention - Your Online Source for Credible Health Information	-3
13	tradekey.com - Business to Business (B2B) Marketplace - Manufacturers directory for international trade leads TradeKey.com Business to Business marketplace, B2B Marketplace, Import export marketplace	0
14	chemistry.stackexchange.com - Chemistry - Stack Exchange Beta	-2

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