Konkin was said to be writing a book called Counter-Economics. But that was nearly thirty years ago. Of course, he is deceased now, but is there anybody else picking up the slack? That one website makes it look like it is soon to be coming out.
I've been hearing Koman is going to publish Counter-Economics for some time but I'm not holding my breath. You may want to check out Paladin Press for "getting around the system" stuff but I can't vouch for any of that. Your local "spy shop" will have some interesting reading, too. There used to be a similar publisher called Loompanics but they are no longer in business. You may have some luck searching for them on eBay, though.
Mike Gogulski has done some audio versions of Agorist stuff and has them on his website below, great for downloading and listening to them on road trips.
http://www.nostate.com/category/podcasts/He also has a lot of Carson's Mutualist/Non-propertarian stuff which I'm not into, but whatever.
You may also want to read (fiction) Alongside Night by J. Neil Schulman. I see it for $1.25 at used bookstore all the time in the science fiction section.