This is the website for the Foreign and Commonwealth Office, the UK Government department responsible for foreign affairs. Safety is paramount when travelling, so this site is extremely important. The site features safety reports for destinations all over the world, so you can check the volatility of the locations you wish to visit.
For many travellers the range of Lonely Planet books have become a travelling bible. This is the online home of the Lonely Planet and contains a wealth of information on locations, travel tips and safety. A must see site for those planning to travel.
STA Travel offers discounted travel for students and young people. The STA website enables you to search for and buy holidays and travel packages. It also features a lot of information on all destinations and can help you plan your trip.