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

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

Wordnik: Dictionary Definitions and Example Sentences

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

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

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...

Evidence Central™ is an integrated web and mobile solution that helps clinicians quickly answer etiology, diagnosis, treatment, and prognosi...