It's incredibly frightening when you factor in that most/some of these disposed electronics end up in developing countries where they get melted down for metals. Melting plastic and heavy metals without any protection is pretty horrific. I try to hang onto technology as best I can, reselling and reusing whenever possible. I think at this point every TV at my parent's house has an old computer hooked up as a media server. I wish you luck in starting the society! There are a lot of different options there from competitive groups that built autonomous subs/planes/cars/etc to people you just like to tinker with arduinos and such. At my university we have a society dedicated to building things, whatever the students want, so we've built a wind turbine (30 feet tall) and are starting on a hovercraft. If you're at any sort of technical institution I can't imagine it will be hard to find loads of interested people.