Here is a list of potentially useful resources for students (and teachers) to consider using for presentations, assignments, etc. Feel free to contact me if you know of other resources that should be added to the list.

Ahead - Free online presentation tool. An alternative to PowerPoint.
Prezi - Avery cool, free, online presentation tool.
Yo Yo Games - Free and easy tool for designing video games.
ProProfs - Free online flashcard maker
MindMeister - Free online concept mapping tool.
50 Tools for Digital Storytelling  - link to a number of excellent options for creating your own web-based stories.
100 Digital Storytelling Tools - another link to a number of excellent ways for you to tell your stories.
Glogster - Poster yourself!
Xtranormal - Quickly convert text into animated movies.
Trading Card - Turn your pictures and photos into trading cards.
Masher - Create free online videos by mixing video clips, music and photos.
Wordle - Create "word clouds" from text that you provide.
Empressr - Yet another online presentation tool.
Wallwisher - Create your own online collaborative noticeboard.
Stupeflix - Turn your photos, videos and text into professional videos.
Domo Animate - Another option for a creative slide show.