The crowd-sourcing of mass data sets to support research projects is increasingly becoming a viable and valuable option for researchers. The success of the Galaxy Zoo project (http://www.galaxyzoo.org/) recently demonstrated this phenomenon. The Conker Tree Science project (conceived by researchers at the Universities of Bristol and Hull) similarly engaged members of the public across the UK this summer (http://www.ourweboflife.org.uk/) by appealing for evidence of the rapid year-on-year spread of the horse chestnut leaf-mining moth (and its predators, parasitic wasps). Geo data and photographic evidence are needed to allow scientists to examine the progress of this new problem in the UK. Public support for the project looks set to increase through 2011, with TV’s “The One Show” expressing an interest in launching a national appeal for contributors to the online survey next summer. This project proposes to build on existing software from the JISC-funded projects, “MyMobileBristol” and “Visualising China” in order to offer: • A new and improved mechanism for deriving automatically geo-tagged photographic evidence of the spread of this horse chestnut leaf disease. • Sustainable integration of crowd-sourced data with analysis tools used by scientists. • Easy-to-use, Web-based, data visualisation software to facilitate crowd-sourced verification of the quality of the original image data submitted. Employing the skills of a User Experience expert we will engage with users of the system and develop tools that will not only benefit the current, NERC-funded Conker Tree Science project, but that are free, open source, and reusable for future projects that require crowdsourced, research data.