Methods, apparatuses and systems directed to predicting the performance of an information package or module presented on a network addressable resource, such as a web page. A particular implementation relies on regression models that utilize statistical measures of user interest in terms, concepts and other subject matter as revealed in on-line search activity of a pool of users. A model receives as inputs a plurality of attribute values corresponding to an information package or module (including one or more statistical measures of interest) and outputs an estimated click-thru rate.