This summer,I visited China with my boyfriend..for the second time.  Those years ,China changes a lot..Take tips for example,Today, attitudes towards tipping are changing. Although the practice is not officially recognised, tips are now frequently offered to and accepted by travel guides, tour bus drivers, porters and waiters in top-class hotels and restaurantsHowever, tipping is still not expected in most restaurants and hotels. So ask the guide whether a tip is necessary and how much when you are uncertain. Consumer taxes are included in price tags on goods but big hotels and fine restaurants may include a service charge of 10% or more.And the online booking service is  also developing fast,.Now you can conveniently made around the clock at all Chinese hotels open to foreigners by telephone from your home..You can also book your hotels through on line booking systerm derectly. During our stay in China,we booked The Panorama Century Court, Sheraton Suzhou Hotel & Towers,  The Gloria Plaza Hotel Beijing  through http://www.86hotels.com .the hotels are all very nice.and the booking service is very efficiious.