Añadir repositorios Ubuntu

Esta noche, he tenido problemas para dormir y estoy preparando un tutorial sobre una aplicacion que interesara mucho, pero tenia hoy ganas de escribir aqui en el blog y no se me ocurria nada, hasta que la inspiracion llego.

Los repositorios disponibles en nuestro sistema, se encuentran en /etc/apt/sources.list y el archivo es facilmente editable poniendo en una terminal sudo gedit /etc/apt/sources.list y nos encontraremos algo como esto:

# deb cdrom:[Ubuntu 9.10 _Karmic Koala_ - Release i386 (20091028.5)]/ karmic main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb cdrom:[Ubuntu-Netbook-Remix 9.10 _Karmic Koala_ - Release i386 (20091028.4)]/ karmic main restricted
deb http://es.archive.ubuntu.com/ubuntu/ karmic main restricted
deb-src http://es.archive.ubuntu.com/ubuntu/ karmic main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://es.archive.ubuntu.com/ubuntu/ karmic-updates main restricted
deb-src http://es.archive.ubuntu.com/ubuntu/ karmic-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://es.archive.ubuntu.com/ubuntu/ karmic universe
deb-src http://es.archive.ubuntu.com/ubuntu/ karmic universe
deb http://es.archive.ubuntu.com/ubuntu/ karmic-updates universe
deb-src http://es.archive.ubuntu.com/ubuntu/ karmic-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://es.archive.ubuntu.com/ubuntu/ karmic multiverse
deb-src http://es.archive.ubuntu.com/ubuntu/ karmic multiverse
deb http://es.archive.ubuntu.com/ubuntu/ karmic-updates multiverse
deb-src http://es.archive.ubuntu.com/ubuntu/ karmic-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://es.archive.ubuntu.com/ubuntu/ karmic-backports main restricted universe multiverse
# deb-src http://es.archive.ubuntu.com/ubuntu/ karmic-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu karmic partner
# deb-src http://archive.canonical.com/ubuntu karmic partner

al final del todo podemos añadir manualmente los repositorios que queramos incluir, yo he hecho aqui una recopilacion de los que he encontrado por hay para que les echeis un vistazo y veais cuales son los que os interesan:


#Tormod Volden (xserver)

deb http://ppa.launchpad.net/tormodvolden/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/tormodvolden/ubuntu jaunty main

#Marcelo Boveto Shima (omnibook-source – HP)

deb http://ppa.launchpad.net/marceloshima/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/marceloshima/ubuntu jaunty main

#Freenx Team (freenx, nxagent)

deb http://ppa.launchpad.net/freenx-team/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/freenx-team/ubuntu jaunty main

#Bhavani Shankar (bzip, xSane)

deb http://ppa.launchpad.net/bhavi/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/bhavi/ubuntu jaunty main

#Scott James Remnant (python-webkitgtk)

deb http://ppa.launchpad.net/scott/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/scott/ubuntu jaunty main

#Matti Lindell (hamster, HAL…)

deb http://ppa.launchpad.net/mlind/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/mlind/ubuntu jaunty main

#TJ (KVM, AudaCity)

deb http://ppa.launchpad.net/intuitivenipple/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/intuitivenipple/ubuntu jaunty main

#Michael Kuhn (gitweb / git)

deb http://ppa.launchpad.net/suraia/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/suraia/ubuntu jaunty main

#gwibber-daily

deb http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu jaunty main

#Patryk-Prezu

deb http://ppa.launchpad.net/patryk-prezu/ppa/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/patryk-prezu/ppa/ubuntu jaunty main

#Pete Deremer

deb http://ppa.launchpad.net/sportman1280/ppa/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/sportman1280/ppa/ubuntu jaunty main

#Wordpress

deb http://ppa.launchpad.net/wordpress/ppa/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/wordpress/ppa/ubuntu jaunty main

#Chromium (Google Chrome para Linux)

deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu jaunty main

#Mythbuntu

deb http://ppa.launchpad.net/mythbuntu/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/mythbuntu/ubuntu jaunty main

#Jerome Guelfucci (XFCE)

deb http://ppa.launchpad.net/jerome-guelfucci/ppa/ubuntu jaunty main
#deb-src deb http://ppa.launchpad.net/jerome-guelfucci/ppa/ubuntu jaunty main

#Kubuntu desktop (KDE)

deb deb http://ppa.launchpad.net/kubuntu-experimental/ubuntu jaunty main
#deb-src deb http://ppa.launchpad.net/kubuntu-experimental/ubuntu jaunty main

#Medibuntu (Adobe reader, google earth, etc)

deb http://packages.medibuntu.org/ jaunty free non-free
#deb-src deb http://packages.medibuntu.org/ jaunty free non-free

#Shutter

deb http://ppa.launchpad.net/shutter/ubuntu jaunty main
#deb-src http://ppa.launchpad.net/shutter/ubuntu jaunty main

#Software Publico del Laboratorio Nacional Argonne (US):

deb http://mirror.anl.gov/pub/ubuntu jaunty main
#deb-src http://mirror.anl.gov/pub/ubuntu jaunty main
deb http://mirror.anl.gov/pub/ubuntu jaunty-updates main
#deb-src http://mirror.anl.gov/pub/ubuntu jaunty-updates main
deb http://mirror.anl.gov/pub/ubuntu jaunty-security main
#deb-src http://mirror.anl.gov/pub/ubuntu jaunty-security main
deb http://mirror.anl.gov/pub/ubuntu jaunty-proposed main
#deb-src http://mirror.anl.gov/pub/ubuntu jaunty-proposed main
deb http://mirror.anl.gov/pub/ubuntu jaunty-backports main
#deb-src http://mirror.anl.gov/pub/ubuntu jaunty-backports main

#Gnome media player

deb http://ppa.launchpad.net/gnome-media-player-development/development/ubuntu karmic main
deb-src http://ppa.launchpad.net/gnome-media-player-development/development/ubuntu karmic main

importar las llaves de Gnome media player:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7362E5D

#Vlc 1.1.0 Final (desde terminal)

sudo add-apt-repository ppa:c-korn/vlc && sudo apt-get update
sudo apt-get install vlc mozilla-plugin-vlc

#Skype (tambien disponible en Medibuntu)

deb http://download.skype.com/linux/repos/debian/ stable non-free

importar llaves:

sudo apt-key adv --keyserver pgp.mit.edu --recv-keys 0xd66b746e

#xbmc (para Ubuntu 9.10 desde terminal)

sudo add-apt-repository ppa:team-xbmc-svn

Estos son solo unos pocos, pero buscando por internet podreis encontrar mas dependiendo de vuestras necesidades