The present disclosure provides a multi-source data analytics system, data manager, and related methods. The multi-source data analytics are measured and used to generate an overall performance indicator. In some examples, the overall performance indicator relates to digital content items available on a digital media platform. The digital media platform obtains relevant data from multiple sources (or channels) and calculates the overall performance indicator so as to account for one or a combination of promotional bias of at least some data sources, user visits (or interactions/views), user engagement, user recirculation, or user acquisition and retention (e.g., subscriber acquisition and retention) for one or more of the multiple data sources. The overall performance indicator may be used by a data manager to locate content on the digital media platform for more effective interaction among other uses.