There are many large-scale projects aimed at building "Grids" for a variety of applications and communities as well as projects developing grid technologies and technology frameworks. Several are listed here as examples. This is not, however, an exhaustive list of grid-building activities.

Application Community Initiatives

Workshop on Advanced Collaborative Environments
To be held at the 2nd IEEE International Symposium on Cluster Computing and the Grid (CCGrid 2002) in Berlin, 21-24 May 2002
STAR TAP
The Science, Technology, And Research Transit Access Point
StarLight
StarLight, the optical STAR TAP
The Access Grid
The Access Grid (AG) is the ensemble of resources that can be used to support human interaction across the grid.
Global Grid Forum
the international Forum of the Grid Community, created through a merger of US, European and Asia-Pacific Forum communities
The Datagrid Project
the EU sponsored project for the development of a computational and data intensive grid for High Energy Physics, Earth Observation and Biology applications
The Griphyn Project
the NSF sponsored Petabyte-scale computational environments for data intensive science in the 21st century
NEESgrid
network for Earthquake Engineering and Simulation, a US National Science Foundation funded team developing a national-scale virtual laboratory for the earthquake engineering community

General-Purpose Grid Technology Projects

Globus
the project which is developing fundamental technologies needed to build computational grids
Legion
an object-based, meta-systems software project at the University of Virginia
Condor
a High Throughput Computing System at the University of Wisconsin
SInRG
the Scalable Intracampus Research Grid research project at the University of Tennessee
EuroGrid
EU sponsored project to deploy a Grid testbed among multiple European high performance computing laboratories, focusing on a suite of applications including biomolecular simulation, weather prediction, coupled CAE simulations, structural analysis, and real-time data processing.