The Access Grid Toolkit, which includes Virtual Venues software and Workspace Docking software, enables users to experience rich collaborations including people, data, and grid computing resources. The new version of the toolkit includes streamlined user interfaces, robust middleware and low-level services that enable participants to share experiences through digital media.
EF AccessGrid is a rewrite, extension, and repackaging of a number of (originally) multicast-based audio- and video-conferencing tools. I am writing this more from memory than from true facts, so someone would have to check and fix appropriately this page if necessary. The tools at hand have been around for around 10 years now, in various different forms. These are VAT, RAT (both two audio-conferencing tools) and VIC (a video-conferencing tool). Added to these, there are tools such as a distributed whiteboard, a conference announcement (and join) tool, a VCR, etc. These tools originate from a number of American and European projects, MICE being one of them (and one that I was involved in). They all use Tcl/Tk for the building of the interface and the gluing of all lower-level C/C++ components.