Since it's been a while since I posted in this thread, there's a been a few changes in my sites I should flag up.
My main Science and Interactive Whiteboard resource site has moved from my personal site to
There are science Flash resources such as Quizzes, and also Smart Notebook and ActivStudio Flipchart files for free download.
the Big Brown Envelope continues to run, and I need to add some more resources to it soon: www.bigbrownenvelope.co.uk
Also I have set up a forum specifically aimed at Interactive Whiteboards, as a place for me to post any good websites I find for IWB's and to provide an independant site that users can get help and advice on using their IWB