TeraGrid is a multi-year effort to build and deploy the world’s largest, most comprehensive, distributed infrastructure for open scientific research. By 2004, the TeraGrid will include 20 teraflops of computing power distributed at nine sites, facilities capable of managing and storing nearly 1 petabyte of data, high-resolution visualization environments, and toolkits for grid computing. Four new TeraGrid sites, announced in September 2003, will add more scientific instruments, large datasets, and additional computing power and storage capacity to the system. All the components will be tightly integrated and connected through a network that operates at 40 gigabits per second. Researchers may obtain a user’s guide about access to the TeraGrid by clicking here. This has been added to Grid Resources Subject Tracer™ Information Blog.