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TripAdvisor - Unbiased hotel reviews, photos and travel advice for hotels and vacations - Compare prices with just one click.

Open source travel guide featuring up-to-date information on attractions, hotels, restaurants, travel tips and more. Free and reliable advice written by Wikitravellers from around the globe.

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Travel guides and guidebooks. Travel advice, tips and destination information to inspire you from Lonely Planet

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Honest hotel reviews, millions of travel buddies, and thousands of travel blogs to help plan your next trip. Share travel tips, find a travel buddy, or blog about your travel experiences, all for free.

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

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