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

Dictionary.com - the largest and most trusted free online dictionary. Instantly look up accurate and extensive definitions and word meanings, and hear...

Oxford Advanced Learner

Facebook helps you connect and share with the people in your life.

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...

We are a nonprofit corporation composed of a diverse group of citizens from many countries who follow and document emerging and re-emerging disease.

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synon...

Fun and education, academic medical home, community outreach,Kids learning, help kids read, write, and cut TV time, help kids and their families build...

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

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...