The Open Science at Web-Scale Report by Dr Liz Lyon, Director of UKOLN and Associate Director of the Digital Curation Centre, was commissioned by JISC and published in November 2009 by UKOLN/Digital Curation Centre. This consultative document explores aspects of open data and open science and how institutions might respond to these developing trends. It is now available for comment on WriteToReply, and feedback from interested practitioners would be very welcome.