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Become a scuba diver, Find a dive shop or dive resort, Learn to scuba dive with PADI scuba diving experts who guide you with scuba lessons, and information on how to start a career with scuba diving!, scuba certification, scuba diving class, scuba di...

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

LinkedIn strengthens and extends your existing network of trusted contacts. LinkedIn is a networking tool that helps you discover inside connections to recommended job candidates, industry experts and business partners.

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

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 ...

San Francisco - User Reviews and Recommendations of Top Restaurants, Shopping, Nightlife, Entertainment, Services and More at Yelp

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

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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.

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...