• An introduction to the sudo command and configuration file – Simple Help – It’s a very useful feature in Linux that allows the administrator of a Linux machine to grant “root” privileges to a particular user or group of users. It can also be configured so that this privilege is limited to one or more commands.
• nosleep software – FileZ e Due Yesterday, duas aplicações porreiras para o PalmOS
• Free Science and Video Lectures Online! – As aulas e lições de Richard Feynman, um dos maiores génios do século passado.
• The Tao Of Backup Sanctuary – Welcome to The Tao Of Backup Sanctuary, where you can relax about backups! This is the page to bookmark. From here you can revisit any of the heads of backup pages. Did you read the "more info" page attached to each backup head page?
• (IN)SECURE Magazine – (IN)SECURE Magazine is a free digital security publication discussing some of the hottest information security topics.

• SoftPerfect Network Scanner: fast and free network scanner – SoftPerfect Network Scanner is a free multi-threaded IP, NetBIOS and SNMP scanner with a modern interface and several advanced features. It is intended for both system administrators and general users who are interested in computer security. The program pings computers, scans for listening TCP ports and displays which types of resources are shared on the network (including system and hidden).
• fsck: The In’s and Out’s of Fsck – Dealing with corrupt filesystems – Most people's first experience with fsck comes after their system has crashed and they're faced with cryptic and daunting questions from it. This is unfortunate because they're probably under considerable pressure to get the system running again and don't know what to do. If you're new to Unix and responsible for one or more systems I would encourage you to find an unimportant workstation and experiment with fsck a little – umount a filesystem and fsck it. If the machine doesn't have any data on it you could pull the power and see what happens when the machine reboots… This FAQ focuses on Solaris, though most of it is also applicable to other Unix variants, including Linux.
• SIW (System Info) 2008.12.16.0 – Tecnologia, Software, Tutoriais – SIW é uma ferramenta que nos informa detalhadamente de tudo o que existe no nosso computador, no que se refere ao hardware, sistema operativo, etc… São apresentados detalhes do CPU, rede, TCP/IP, memória, hardware em geral, utilizadores, partilhas, tráfego de rede, versões do firmware, enfim, tudo o que está escondido dentro da caixinha mágica.
• IPCop.org :: The bad packets stop here! – IPCop Firewall is a Linux firewall distribution geared towards home and SOHO (Small Office/Home Office) users. The IPCop interface is very user-friendly and task-based. IPCop offers the critical functionality of an expensive network appliance using stock, or even obsolete, hardware and OpenSource Software.
• Spiceworks – Free Systems Management and IT Management Software – Spiceworks IT Desktop delivers nearly everything you need to simplify your IT job. Designed for small- and medium-sized businesses, Spiceworks single, easy-to-use interface combines Network Inventory, Help Desk, Reporting, Monitoring and Troubleshooting.
• SSL-Explorer: Community Edition – Wikipedia, the free encyclopedia – SSL-Explorer: Community Edition was an open source SSL VPN product developed by 3SP Ltd. The solution is licensed under the GNU General Public License (GPL) and is aimed primarily at smaller businesses to fulfill a requirement for remote access to internal network resources.

Recomendo vivamente o FreeCell e o Aces Up.

Estou viciadíssimo!!