You want to know useful information about news, banks, flights, tours, accommodation and tips to save money as well as can choose the suitable services and products. Refer to following sites to have a great trip.
Travel Forums: There are some famous travel forums on the internet as Tripadvisor, Lonely Planet, FlyerTalk, Thorn Tree Lonely Planet with lots of reviews, discussions on services, hotels, transports and related information.
Useful Vietnam travel resources: If you are going to visit Vietnam and want to know more information, you can refer the following links.
http://www.mofa.gov.vn/en – Ministry of Foreign Affairs.
http://vnimm.gov.vn/Indexe.asp – Vietnam Immigration Department.
http://www.vietnamtourism.com/ – Ministry of Culture, Sports and Tourism
Hotel sites: If you want to book the hotel, you can search on Booking.com, Agoda, Hotels.com. If you want to discover the real life with locals, you can search on Withlocals.com, Airbnb.com, or Couchsurfing.
Booking Sites: Skyscanner, Kayak.
Money and banking: you can exchange money at bank or gold shop.