Dynamic Periodic Table
"Many other periodic tables use the word interactive to describe themselves while offering nothing more than links to pages of data about elements. Pages of data are fine, and Ptable "outsources" these writeups to other providers like Wikipedia and WebElements through the dropdown in the first tab. However, this is only offered as a convienence. Ptable shines when used as a true application, more interactive and dynamic than any standalone software. Please continue reading to learn about all the interesting things you can do with Ptable that make Mendeleev's creation come alive.
All HTML. No images. No Flash.
This gives all the scalability and accessibility of a normal web page while looking as good as any image or Flash out there. Highlight and copy data, print, and resize to suit your vision, just like you would with any web page."