ResultSource is a San Diego–based book marketing company that conducts "bestseller campaigns" on behalf of authors.

[1] The company states "We create campaigns that reach a specific goal, like: 'On the bestsellers list', or '100,000 copies sold'.

[2] It does this through bulk book buying programs designed to manipulate the metrics used by Nielsen BookScan and the New York Times Best Seller list, among other strategies.

"[2] It describes how author and pastor Mark Driscoll contracted with ResultSource to place his book Real Marriage on the New York Times bestseller list for a $200,000 fee.

[4] ResultSource was also implicated in Handbook for Mortals' 23 hour stint at the top of the New York Times Bestseller List.