HowtoForge - Linux Howtos and Tutorials - overview of Linux LiveCDs
Debian Testing - daily builds of Debian Testing
ALSA - Advanced Linux Sound Architecture
Linux Apps - best of linux apps - system repairing and data recovering - Linux-Magazin Academy - Package management commands - sudoers - Linux Distribution Timeline


Damn Small Linux - very small Live CD
KANOTIX - Debian based LiveCD Distro
FreeNAS - The Free NAS Server
grml - Linux Live-CD for sysadmins
BackTrack - great distro for check net security, wep crack etc.
ENDIAN Firewall - Endian firewall community edition
Debian - Debian Installer Etch Beta 2 Download - Linux based firmware for wireless routers - OpenSolaris

sudo apt-get install glest - A. D. (Age of Empires clone)

dd_rescue - recover data from broken harddisks


Kernel Options (from Documentation/kernel-parameters.txt)
vga=xxx - set your framebuffer resolution to VESA mode xxx. (
acpi=off OR noacpi - This parameter disables the whole ACPI system. This may prove very useful, for example, if your computer does not support ACPI or if you think the ACPI implementation might cause some problems (for instance random reboots or system lockups).
acpi=force - Activates the ACPI system even if your computer BIOS date is older than 2000. This parameter overwrites acpi=off and can also be used with current hardware if the ACPI support is not activated despite apm=off.
pci=noacpi OR acpi=noirq - These parameters disable the PCI IRQ routing
pci=acpi - This parameter activates the PCI IRQ routing
acpi_irq_balance - ACPI is allowed to use PIC interrupts to minimize the common use of IRQs.
acpi_irq_nobalance - ACPI is not allowed to use PIC interrupts.
acpi=oldboot - Deactivates the ACPI system almost completely; only the components required for the boot process will be used.
acpi=ht - Impact Deactivates the ACPI system almost completely; only the components required for hyper threading will be used.
noapic - Disable the "Advanced Programmable Interrupt Controller (APIC)".
nolapic - Disable the "local APIC".
apm=off OR noapm - Disable the Advanced Power Management.
irqpoll - Changes the way the kernel handles interrupt calls (set it to polling). Can be useful in case of hardware interrupt issues.

openSuSE - Autoyast

# set minimal swap usage
echo "vm.swappiness = 1" > /etc/sysctl.d/90-swap.conf

Vim - Search and replace

Configure static IP
# /etc/network/interfaces
auto eth0
iface eth0 inet static