Well, this isn't exactly a web site full of information, more of an application posted online for use. But it is a lot of fun, and will give you a glimpse of what it is like to paint in the style of Jackson Pollock. It's not as easy as you think! Just go to jacksonpollock.org and move your mouse around the blank canvas. Slow movement will give thick trails of paint. Quick movement will draw slurpy thin waves across the page. Pause and you get a big old dollop! Each time you click, you will load the brush with a different color.
Sometimes I leave my computer at this site and let each of the kids have a turn for free choice. It is quite a treat! I hope you get a chance to create your own action painting.