You made 'friends' with people you don't know on Friendster, shared photographs with them on Flickr... now blackmail them for fun and profit with Extortr.

Well no, not really, but Extortr does a lovely job of skewering the Web 2.0 spirit:

"Extortr is hosted in Kgryjstan, where enterprising, forward-thrusting Web 2.0 businesses such as ours are welcomed with open arms. We operate within the bounds of local law; it is your responsibility to make sure you obey any laws in your jurisdiction."