One of the things I love in Linux is that we can do a simple thing 100 different ways in it, like creating random passwords..

Guake - Quake-style terminal for GNOME
A Quake-style terminal is a drop-down terminal which can be shown/hidden just like the console in Quake (and most of the first-person shooter games out there), using the press of a key (~ in Quake). Guake is a terminal application written in GTK which uses the F12 keyboard shortcut by default to show or hide it.

Internet connectivity is one of the important means of communication in todays life. So troubleshooting the problems in our own networks or reconfiguring it for the easiness is not to be praised as a "geekness". In my opinion you don't need to be a geek for setting an internet connection or recovering your machine from a network problem.

Terminal is the power tool that every linux user may have to come in contact even once in their computer life. Here is a post about controlling and managing your system using the gnome terminal.

Terminator 0.90 is a complete re-write of the original code. The most important new feature is that now you are able to save layouts.

FreeNX is an open source implementation of NoMachine's NX Server. It is a bit more akin to Microsoft's RDP protocol than the usual VNC, so while keeping bandwidth to a minimum, it maintains good visual quality and responsiveness.

Using the following command, you can check your unread messages in gmail, from terminal:

Irssi is a terminal based IRC client for UNIX systems. It also supports SILC and ICB protocols via plugins.

Greatest features
You might be wondering what makes Irssi such an easy and comfortable client to use: