Hi Guohui,
I noticed that you are using WebMol for visualization, which is fine. However, you might consider to add Jmol as an alternative, at least. Jmol seems to be quite popular right now with an active community. I have recently asked a question regarding Jmol support on alchemy file format there, and received near ten responses.
Also, for the fiber models, I thought we could have a page with all 55 models each with images in (three) different views, citations to the original references etc. This will give users a direct impression on the comprehensiveness of possibilities available with w3DNA/3DNA. We certainly have no matches, as far as I am aware of. A handy (robust and efficient) fiber-model generation and visualization service will by itself be a useful tool to community at large (e.g., for educational purpose), as I mentioned to you before.
Thanks for answer questions in the open 3DNA forum. You will realize that it is good thing to do: just keep doing it!
Xiang-Jun