Graphics+Tools

Try this multimedia application as an alternative to PowerPoint. It's called Prezi. You have to register, but it's free.

Wordle is great to use as a graphic organizer. No registration or sign-up needed. Yay!

Poster tool glogster

Picture editing tools picnic, fotoflexer, panoramio
 * picnic has recently changes some of its user policies

Graffiti Maker: Creates a Graffiti style font for posters