Source: paperplanes. Six-ish Months of eBook Sales: Riak Handbook
Stashed in: Pricing!
One developer's experience selling a self-published ebook.
Pricing Experiments You Might Not Know, But Can Learn From
'Fair and square' pricing? That'll never work. We like being shafted.
The Science of Pricing
Are Rotisserie Chickens a Bargain?