According to Wikipedia:
"Extortion, outwresting, or exaction is a criminal offense, which occurs when a person either unlawfully obtains money, property or services from a person, entity, or institution through coercion or intimidation or threatens a person, entity, or institution with physical or reputational harm unless he is paid money or property. Refraining from doing harm is sometimes euphemistically called protection. Extortion is commonly practiced by organized crime groups. The actual obtainment of money or property is not required to commit the offense. Making a threat of violence or a lawsuit which refers to a requirement of a payment of money or property to halt future violence or lawsuit is sufficient to commit the offense. Exaction refers not only to extortion or the unlawful demanding and obtaining of something through force, additionally, exact in its formal definition means the infliction of something such as pain and suffering or to make somebody endure something unpleasant."
Fact pattern: Engage someone personally on the Internet. Blog about them to the point of damaging their reputation and business, and have that blog linked by several other sites at the same time. Then demand from the target of your blogging something of value in order for you to stop the blogging and take down the offensive material you posted in the first place. Sound familiar? Sound like coercion?
Discussion: At what point does the insanity stop? At what point do those people controlling their blogs begin to use a filter and stop acting on bitterness and rage. This is a completely unproductive pursuit, by people who apparently believe that free speech includes the right to scream "fire" in a crowded movie theatre. While God may have given man free will, he also gave man a conscience to be able to measure his actions appropriately.
Other concepts that should be looked at: Prima facie tort; intentional infliction of emotional distress; negligent infliction of emotional distress; defamation per se (4 categories where defamation is presumed to have damages); and common decency.
Have an Internet nightmare to share? Please provide it to the site, and we can blog about it. I won't accept anonymous comments, but I can post them without identification if you wish.