Offline Ubuntu

Installung softwares in ubuntu is very easy if you have a fast internet connection. U can install it by either using Add/Remove Softwares or by Synaptic package manager.
But the real problem comes when you want to install large packages and u don't have fast internet connection. To get rid of that there are some great sites that can help users to install packages without internet connection.

1. http://www.offlineubuntu.co.cc
Here u can easily update your package list and then install/upgrade any packages. To do so you need to copy your sources.list file in the required field and then the site will generate a list of download links and it will also show the details on how to use them. the sources.list file can be found at etc/apt/sources.list location.

2.http://labs.fajran.web.id/p/apt-web/
Here you can download any package by just entering the package name and then site will generate a list of links which can be individually downloaded and installed.
To do so Only you need to remember package name of popular softwares. For example
wine,vlc,g++,gcc,sun-java6-jdk etc.

for gstreamer gstreamer0.10-plugins-ugly,gstreamer0.10-plugins-bad etc

After downloading all the packages you need to put them in any local directory.
Then using terminal go to the directory and execute the command
$ sudo dpkg -i *.deb
then give your current password.