WEB Elements is a database of the elements of the periodic table, including the most recently discovered elements.

Periodic Table supplied by Los Alamos National Laboratory as "A Resource for Elementary, Middle School, and High School Students".

Another source of information about the elements is from the British Columbia Institute of Technology.

Elementistory provides the history of selected elements from the periodic table.

This link will allow you to drill in the placement of elements in the Periodic Table by providing you with a blank table to fill in the chemical symbols.