Travel & Holiday websites (in alphabetical order):

Airports and Aviation
Gatwick Airport Parking - airport parking at Gatwick and 23 other UK Airports and Airport Hotels with parking at 23 UK airports including Heathrow, Luton, Stansted and Manchester airports

Hotels, Apartments and Villas
Amsterdam Hotels - Book hotels in Amsterdam with easytobook.com. We offer up to 75% off Amsterdam Hotels.
Bed and Breakfast Roma De Luxe - accommodation in the center of Rome, just 900 meters from Saint Peter's
Krakow Hotels - Krakow hotels and Krakow apartments. Booking and photos. More
than hotels in Poland.
Madrid apartments, Madrid hotels, hotel apartment accommodation in Madrid - Short and mid term apartments for rent in downtown Madrid, Spain
Prague Hotels - discounted accommodation in Prague Hotels, online reservations, sightseeing tours and travel tips.
Warsaw Apartments - Online reservation for Warsaw apartments and great local service.
Warsaw Hotels - Cheap and cozy Warsaw hotels and Warsaw apartments located in the city centre and Old Town.