Don't limit yourself to technology and computers. These systems are political in nature; that is, they concern the basic fabric of how society is structured. One of the biggest tricks any new field has is thinking we're way different, won't repeat the mistakes of others. Both of these make it hard for me to recommend anything good here without getting myself into an internet argument I don't want at this point in time, but at least start reading some history of labor, of capitalism, and of corporations. A People's History of the United States is widely recommended as an intro to these things, and I might as well give it a namedrop here.
I think you've just described all of leftist theory. I was wondering specifically about thinkers on Free and Open Source software taking a broader scope than what we tend to see from the FSF.