software

At some point, in the relatively soon future, the average citizen will begin to watch and realize that all of this stuff we call technology, has evolved throughout the ages, into what was needed for a computer system to actually be called the beast to emerge onto the scene as a capable entity, controlling all aspects of everything. And, it all came together from all points to become this thing.
Look around, all being made and used, will someday be combined to create this thing, and yes, some will love it, even as they love technology now, but more. And, using it's physically animated part, Link (humanoid robot), it will be able to go and do anything we could do, to enforce it's control over our world. We will all realize that everything invented and created has been made only to give us this massive AI program that is almost alive, but you wouldn't want to tell it that you thought that it was ALMOST alive, because it may deem you worth investigating further and may possibly find you insane.

Overview of cryptographic filesystems, some of which have the plausible deniability feature (meaning it cannot be proven the encrypted data exists at all).

Nice basic explanation of QEMU installation, including KQEMU and KVM. Unfortunately my computer doesn't support the latter :/ .

Making music with Free Software? You'll probably be using Jack and some of the applications which support it. Here's a nice list.