Presented at ReCon - Research in the 21st Century: Data, Analytics & Impact, Edinburgh 19 June 2015 How do researchers identify the most relevant papers from roughly 1.8 million articles published in ca. 28,000 scholarly journals each year? And how does discovery lead to “impact”? Established aggregators have traditionally depended on citation counts as the principle measure of relevance. As the Open Access movement sets increasing amounts of data (articles and references) free on the internet, new ways to collect, rate and rank content across publishers are being developed for and by the digital generation. The crux of the Open Access movement may well not be its moral imperative or its new business model, but the myriad of projects which can build on access to structured digital information. How will new Open Access aggregators with novel, open measurements of impact affect the current publishing landscape? Case study: the ScienceOpen platform currently aggregates 1.5 million Open Access articles and is developing tools to showcase excellent research across publishers via editorial selection in Collections.