People DB is a new UCAR resource that gives software engineers and web developers an authoritative source for basic data about UCAR staff and organizations that is up to date and easily accessible via a REST API and SQL queries. This service addresses the current problem of identity data being replicated throughout the organization in various databases which fall out of date and need to be manually maintained. The 2.0 version will expand upon the current scope of HR data to include data from NETS and CISL databases and will support federation of identity data between additional lab, program and division databases. A new version of people.ucar.edu developed using the Google Web Toolkit (GWT) will accompany the 2.0 launch in Spring 2010. In addition, a synchronizer will provide near real-time synchronization of core people and org data to any subscriber database, copying only changes as they happen. This talk will provide an overview of the software architecture of People DB 2.0 and it's components as well as demo the GWT app under development and the REST API.