This is my repository list for Debian Testing (Squeeze) and Debian Unstable (Sid). You must edit sources.list with root privilegies. You can do it with nano (sudo nano etc/apt/sources.list), gedit (gksu gedit etc/apt/sources.list) or kwrite (kdesu kwrite etc/apt/sources.list).
# Debian Testing Squeeze Official / Non Official Repository List
# By PAOLO C. (www.paolocampitelli.com/debian-repository-list)
# To Disable a repository put a # before repository link.
# [Last Update: 08/05/2010]
### Official Debian Squeeze Repository ###
deb ftp://ftp.it.debian.org/debian/ testing main contrib non-free
deb-src ftp://ftp.it.debian.org/debian/ testing main contrib non-free
### Official Debian Squeeze Security Update ###
deb http://security.debian.org/ testing/updates main contrib non-free
### Debian Volatile (squeeze) ###
deb http://volatile.debian.org/debian-volatile squeeze/volatile main contrib non-free
### Marillat Debian Multimedia ###
deb http://www.debian-multimedia.org/ testing main
deb-src http://www.debian-multimedia.org/ testing main
### Maxer Multimedia (sometimes Down) ###
# deb http://repos.knio.it/ testing main contrib non-free
# deb-src http://repos.knio.it/ testing main contrib non-free
### Unofficial Debian Repository ###
#deb http://unofficial.debian-maintainers.org/ squeeze main contrib non-free restricted
#deb-src http://unofficial.debian-maintainers.org/ squeeze main contrib non-free restricted
### Java LG3D Looking Glass ###
#deb http://javadesktop.org/lg3d/debian testing contrib
### Swiftfox, a Mozilla Firefox i686 Optimized Official Repository ###
deb http://getswiftfox.com/builds/debian unstable non-free
### Skype ###
deb http://download.skype.com/linux/repos/debian/ stable non-free
### Opera Browser ###
deb http://deb.opera.com/opera/ lenny non-free
###Java 6 JRE/SDK (From Official Debian Repository) ###
deb http://ftp.bononia.it/debian unstable main contrib non-free
### Enlightment E17 Official Repository ###
deb http://edevelop.org/debian/ testing main
### InitNG- Next Generation Init Start Repository ###
#deb http://debian.mawk.org/debian/ binary/
#deb-src http://debian.mawk.org/debian/ source/
### eMoviX ###
deb http://organact.mine.nu/debian unstable/
### WxWidget Repository ###
#deb http://apt.tt-solutions.com/debian/ etch main
### TOR ###
deb http://mirror.noreply.org/pub/tor lenny main
deb-src http://mirror.noreply.org/pub/tor lenny main
### VirtualBox ###
deb http://www.virtualbox.org/debian lenny non-free
### Emesene- GTK Msn Client SVN Repository ###
deb http://apt.emesene.org/ ./
deb-src http://apt.emesene.org/ ./
### Google software repository ###
deb http://dl.google.com/linux/deb/ stable non-free
### Wine HQ Repository ###
deb http://www.lamaresh.net/apt squeeze main
### aMule CVS Repository ###
deb http://www.vollstreckernet.de/debian/ testing amule wx
————————————————————————————————————-
# Debian Sid Official / Non Official Repository List
# By PAOLO C. (www.paolocampitelli.com/debian-repository-list)
# To Disable a repository put a # before repository link.
# [Last Update: 08/05/2010]
### Official Debian Sid Repository ###
deb ftp://ftp.it.debian.org/debian/ sid main contrib non-free
deb-src ftp://ftp.it.debian.org/debian/ sid main contrib non-free
### Official Debian Testing Security Update ###
deb http://security.debian.org/ testing/updates main contrib non-free
### Marillat Debian Multimedia ###
deb http://www.debian-multimedia.org/ sid main
deb-src http://www.debian-multimedia.org/ sid main
### Maxer Multimedia (sometimes Down) ###
# deb http://repos.knio.it/ unstable main contrib non-free
# deb-src http://repos.knio.it/ unstable main contrib non-free
### Unofficial Debian Repository ###
deb http://unofficial.debian-maintainers.org/ sid main contrib non-free restricted
deb-src http://unofficial.debian-maintainers.org/ sid main contrib non-free restricted
### Java LG3D Looking Glass ###
#deb http://javadesktop.org/lg3d/debian unstable contrib
### Swiftfox, a Mozilla Firefox i686 Optimized Official Repository ###
deb http://getswiftfox.com/builds/debian unstable non-free
### Skype ###
deb http://download.skype.com/linux/repos/debian/ stable non-free
### Opera Browser ###
deb http://deb.opera.com/opera/ sid non-free
###Java 6 JRE/SDK (From Official Debian Repository) ###
deb http://ftp.bononia.it/debian unstable main contrib non-free
### Enlightment E17 Official Repository ###
deb http://edevelop.org/debian/ unstable main
### InitNG- Next Generation Init Start Repository ###
#deb http://debian.mawk.org/debian/ binary/
#deb-src http://debian.mawk.org/debian/ source/
### eMoviX ###
#deb http://organact.mine.nu/debian/ unstable/
### WxWidget Repository ###
#deb http://apt.tt-solutions.com/debian/ etch main
### TOR ###
deb http://mirror.noreply.org/pub/tor sid main
deb-src http://mirror.noreply.org/pub/tor sid main
### VirtualBox ###
deb http://www.virtualbox.org/debian etch non-free
### Emesene- GTK Msn Client SVN Repository ###
deb http://apt.emesene.org/ ./
deb-src http://apt.emesene.org/ ./
### Google software repository ###
deb http://dl.google.com/linux/deb/ stable non-free
### Wine HQ Repository ###
deb http://www.lamaresh.net/apt sid main
### aMule CVS Repository ###
deb http://www.vollstreckernet.de/debian/ unstable amule wx
### VLC SVN Repository ###
#deb http://nightlies.videolan.org/build/sid-i386/arch/ ./
[...] Debian Repository List [...]
If You are Ready, I can write a blog for you related to Linux and we can earn a lot
[...] Debian Repository List [...]
Your article peferclty shows what I needed to know, thanks!