This is really interesting http://www.jmir.org/2015/8/e204/ *Conclusion*: *Understanding the information-seeking behavior associated with online evidence sources can offer insight into the information needs of health professionals and enable large-scale medical surveillance. Our Web log mining approach has the potential to monitor responses to FDA alerts at a national level. Our findings can also inform the design and content of evidence-based medical information resources such as UpToDate.* I'm clearly conflicted as Trip also has a large search logs collection but I've thought for a while now that search logs are an under-utilised resource. In part this is because people are probably unaware they exist! Best wishes jon -- Jon Brassey Trip Database http://www.tripdatabase.com Find evidence fast