I'm too lazy to create a website. There is something to do for a website operation. Actually this website contains server-side application of my android app that can share wifi location and information. You can try it here VietFi Mobile App.
By the way, for advertisement: if you want to buy top-up prepaid card for Mobile Internet access in Vietnam (2G, 3G). You can go to MCard.vn, register one account, deposit money by credit card or bank account, then buy something you like.
Thach Anh (aka MyQuartz)