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In re-reading some of my older blog articles, I have found the following  problem with many Chinese language websites. When my article gave reference to material associated with my article, e.g., a website, the Chinese website do not archive old news reports. Instead one finds the website referenced has new stories featured that has nothing to do with my article. The old article referenced by me has disappeared and nowhere to be found. There is nothing I can do about this. On the other hand, international news sites such as CNN or NY Times  has a distinct reference for each page of content featured. Reader can always see it even if the content is ten years old. I hope ScienceNet reader and the general public can urge these Chinese websites to change their practice. After all, these days computer memory to a first approximation cost nothing.

Note added 3/10/2017 sometimes it is possible to find the old content after you get to that site and use the search feature at that site to find the what you are looking for.