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

Find what you want in a library near you with WorldCat, a global catalog of library collections.

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

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 friends, upload an unlimited number of photos, post links and videos, and learn more about the people ...

The best insider travel tips, reviews and photos posted by real travelers on over 72,000 travel destinations. Research, plan, book your next vacation with VirtualTourist.com.

Listen to online radio, find streaming music radio and streaming talk radio with TuneIn. The best guide to every type of radio: conservative, progressive, public, news, sports, religious, jazz, classical, rock, country, business, latin, hip-hop, pop...

The Philadelphia Area Center for History of Science (PACHS) promotes scholarly and public understanding of history of science, technology and medicine.

Full website analysis, information and tools to make your website better. Focus on websites built with Wordpress, jQuery, Bootstrap and Font Awesome

BestReviewDomain - best review and free analytic for webmasters that gathers detailed information on your domain : traffic details, Technology language, whois, ranking info, domain backlinks,domain IP, DNS record, optimization, network tools, seo too...

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