Abstract: Based on historical data describing product sales or other types of transactions, indicator scores may be calculated for users who have purchased, reviewed, or otherwise consumed products, the indicator scores based on subsequent diffusion of the products. Measured, current activities of the scored users with regard to another product may then be employed to develop a diffusion model that predicts the future sales of the other product over time. The diffusion model may be employed to determine product pricing, marketing, distribution, or acquisition.

Abstract: Techniques for use with an electronic book reader include receiving localized evaluative feedback from users, pertaining to different locations within electronic content. The localized feedback is collected at a server and reported to content creators in reports that are formatted to indicate characteristics of the feedback at different locations within the electronic content.

Abstract: A system and method of data mining for republishing is described. In some embodiments products having a high potential for increased sales through republishing are identified based on relationships with products having consistent sales. In some embodiments products having a high potential for increased sales through republishing are identified based on sales in one language and availability of rights in another language. In one aspect, translations are facilitated via a translations marketplace.