Linux iptables Pocket Reference is a really great little book, and although it’s been written a good few years ago, most of the explanations still apply.
UPDATE: I've ultimately decided to sell Nuxified.org, the reason being it would be too much time to focus on both Nuxified and Libervis.com simultaneously, in addition to other projects.
Just like probably most people on the Internet I receive a lot of spam, especially on my very first eMail-address I ever registered.
In 2009 I had written about my experience with Claws Mail. After almost a year with Claws and a few minor releases, I thought it useful to share my experiences after a longer period of time.