Andrew Pitts has worked in STM publishing for over 22 years with Blackwells and ACS. He is a co-founder of PSI Ltd, the IPRegistry and the Publisher Due Diligence Bureau. The success of their work in this field has led them to expand PSI services to the online world and they have spent the past 4 years developing the proprietary web based IPRegistry . This ensures that publishers’ IP addresses governing access to their content are vetted, secure, and free of error. It is also an easy way for libraries globally to ensure their IPs are easily and constantly updated by sending changes to Publishers via and API.