Great video of 'How to create a great PowerPoint presentation without breaking the law' by Alvin Trusty (via Wes Fryer's Blog). Quite long (40-odd minutes), but very good messages throughout. I particularly liked the way he talked about creative commons and the use of www.compfight.com as a means of obtaining high quality images.
Wiki to introduce Twitter to teachers. If you are interested in Twitter and haven't given it a go yet, this would be a great place to go for an introduction.
Customizable flash games for IWB. Would be excellent for reviews. Games such as Jeopardy, Who Wants to be a Millionaire provide great frameworks to use.
Fantastic free software that creates books out of your photos, and most usefully for me, your BLOGS! Download, arrange and order hard or softcover books made by you.