I read this article when it came out ages ago and got kind of hooked on the idea. The result is Notoriety, i've just about got it to a 1.0 beta stage and need a few people to test it out for me. Check it out at notoriety.ciety.net

It lets you make sticky notes on a website powered with PHP and MySQL. It lets you embed images, rss feeds, amazon wishlists, and soon a flickr plugin too as well as formatting text with Textile markup. Right now it only has the one page, but version 2.0 will have multiple pages of content so you can pretty much use it however you like.

Let me know what you think.