Visimeet, based on DoE's Access Grid open source (Score 1)

IOCOM just released a new version of Visimeet (based on Access Grid, developed by Argonne National Laboratories) with free and premium options and with individual and room solutions. My group started using the free version, and we don't have to pay for point-to-point users. We connect dozens of students, and instructors can see all of them at the same time. The best part is that we only pay for a subscription for the instructors. The students are free.