Kayak is a popular online travel agency and metasearch engine that allows users to compare prices on flights, hotels, rental cars, and vacation packages from various travel websites.

Fodor's Travel is a well-respected travel information and guidebook publisher that provides insights into destinations around the world. It offers travel guides, recommendations for hotels, restaurants, attractions, and practical travel advice.

Lonely Planet is a well-known travel media company that offers guidebooks, online resources, and travel information for destinations around the world. It provides insights into travel experiences, recommendations for places to visit, practical tips, and cultural insights.

Hostelworld is an online booking platform that specializes in hostels and budget accommodation options worldwide. It allows travelers to search, compare, and book hostels based on location, price, and amenities.

Airbnb is an online marketplace for vacation rentals, lodging, and tourism experiences. It connects hosts with guests seeking unique accommodations and experiences worldwide.

Expedia is a leading online travel agency that offers booking services for flights, hotels, vacation rentals, car rentals, cruises, and activities worldwide. It provides a user-friendly platform for travelers to plan and book their trips efficiently.

TripAdvisor is a well-known travel platform that provides reviews and recommendations for hotels, restaurants, attractions, and travel experiences worldwide. It helps travelers plan and book trips by offering insights from other travelers' experiences.

Booking.com is a popular online travel agency that offers booking services for hotels, vacation rentals, flights, and other travel accommodations worldwide. It provides a wide range of options and deals to help travelers find accommodations that suit their preferences and budget.