There has been a lot of discussion about Georgism lately, and this link just made me think: could Georgism effectively be applied to domain name squatting?
i'm actually not trying to be a snot about this, it's just the extreme version of what i view geoism applied to domain names would end up as. if you had a link to an online discussion, that would be cool. probably out of scope for this post, but still sort of interesting.
That being said, you wouldn't look for squatting and then charge a fee. You would evaluate every domain name and change a fee accordingly. Even non-squatted land can be underdeveloped.