Powerpoint backgrounds to download

http://www.powerpointstyles.com/

Soungle.com - Royalty free sound effects

If you are looking for royalty free sound effects for classroom movies try this site http://www.soungle.com/

Blogging is the new persuasive essay

A very good article on using blogging in the classroom to teach persuasive writing. http://plpnetwork.com/2012/06/22/blogging-persuasive-essay/
The comments are extremely informative.