Pro Vivian hasn't it's own BBS or guestbook. The reason for this is that the international World of Collecting Vivian has already a very good online board:
Vivian forum on Cherrytea Forums
The Webmistress of the former Collecting Vivian fansite has opened this Vivian Hsu related forum and moderated it in a diligent and competent way for a long time. Even if the Webmistress has turned down her efforts (supposedly due to professional strain) the communication on this board is unbroken and several people from all over the world - some of them enthusiastic Vivian fans - are regularly posting new Vivian images, English translations of Japanese or Chinese press and magazine reports or just their personal opinions abaut Vivian news.
So I thought there is really no need to create another online forum for Vivian Hsu fans claiming international implications - I cannot do it better.