Great, doomsaying article on IPv4/v6

Here is a great article about IPv4, why it's dangerous, why it's here to stay, and what we can expect for the future of the Internet. Basically, we shouldn't expect a sane free market for trading around free pools of IPv4 addresses, we can expect hacks upon hacks and most likely all kinds of monetary horrors. Imagine what happens when moveOn.org has to apply for a batch of addresses owned by Halliburton.

Most useful command-line utility

$your-package-manager install cowsay
$ fortune | cowsay
 ________________________________________
/ The difference between a Miracle and a \
| Fact is exactly the difference between |
| a mermaid and a seal.                  |
|                                        |
\ -- Mark Twain                          /
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||