There are some sites offering free Chemistry resources, for Advanced Level students and University students.
One such site is Chemistry Never Sleeps which is a mix of Chemistry resources for teachers and students. A recent post included a slide presentation about the Periodic Table.
Mr. Guch’s Free Stuff for Chemistry Teachers is another site containing free stuff which includes four free ebooks containing lesson plans, lectures, and quizzes that Mr. Guch developed for his high school Chemistry classes.
Here are some related sites on Chemistry that may be of interest to you:
Open Chemistry – Free Content for Teaching Chemistry
The Interactive Periodic Table
Video Demonstrations of the Periodic Table of Elements