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Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

The National Library of Medicine (NLM), on the campus of NIH in Bethesda, Maryland, is the world

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

Bible Questions Answered by GotQuestions.org! Fast and accurate answers to all your Bible Questions!

Online Dictionary - Multiple dictionaries including: English dictionary, medical dictionary, legal dictionary, financial dictionary, computer dictionary, thesaurus, dictionary of acronyms and abbreviations, dictionary of idioms, thesaurus, Columbia e...

Medical Dictionary is intended for use by healthcare consumers, students, and professionals as well as anyone who wants to keep up with the burgeoning array of terminology found in today’s medical news. By staying clear of jargon, the dictionary o...

Answers in Genesis is an apologetics (i.e., Christianity-defending) ministry, dedicated to enabling Christians to defend their faith and to proclaim the gospel of Jesus Christ effectively.

Nature - the world

symptom checker allowing research of the causes of one or many symptoms in an extensive knowledge base, including common and rare causes.

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