They have a active web site (http://bostoncyberarts.org/), and put on the irregularly-staged Boston Cyberarts Festival, which was "was the first and largest collaboration of artists working in new technologies in all media in North America, encompassing visual arts, dance, music, electronic literature, web art, and public art."
Boston Cyberarts also runs a gallery in Jamaica Plain; I went to check it out this weekend.
The current exhibit is Crossover, whose theme is "Where is the line between fine art and technology?"
The gallery is quite modest. I actually walked past it twice without seeing it. I was looking for a street address, but the gallery is actually located inside the Green Street Station building, on the T's Orange Line; but with a separate entrance.
Once you know where to look, it's easy to find:
Inside, it's one modest room. There were 20 or so pieces of art on display; all with some type of science-y or tech-y component to merit the "cyber" appellation.
Several pieces were produced with, or with the aid of, CNC milling machines and laser cutters. Others were impressionistic paintings of 1/15th-second video frame grabs. Some odd, elaborate sculptures contained tiny parts meticulously labeled with seemingly-random nautical data.
Only three pieces were actually all digital; short videos of photos undergoing digital coarsening --- using fewer and fewer pixels to display the same data --- until the image was reduced to one large indecipherable pixel.
The exhibit was interesting, but very modest in scale. We saw everything there was to see in maybe 15 minutes, and we were going slowly.
With so little on display, I can't recommend this as much of a destination in itself. But its location (literally right at the T stop) makes this an easy add-on if your travels take you anywhere in the vicinity of the Forest Hills end of the Orange Line.
The exhibits change regularly. The gallery is open to the public and free; with donations welcomed.