Installing 'Debian Menu' in Ubuntu
If you are installing extra debian packages , they don't appear in your Application menu and there are chances for newbie or for non-technical person to get upset. One option for you is to launch application from command line which is not an easy task unless you know executable name properly or keep tabbing after every character to get all combination. The easiest way is to install Debian Menu which not only list down all your debian(*.deb) packages but also categorize them according to their type like Internet,Editor,database etc. In order to activate Debian Menu, you need to install 'menu' pakcage. Run apt-get:
apt-get install menu
After installation, you would see something like this:

Now you can easily find your installed packages.
Keep one thing in mind, you will see only those packages in menu who were installed with .desktop file. There are several packages which are GUI-less for instance Apache or Mysql server. So don't panic about such tools which are installed on your system.
I found an awesome article about installing different kind of packages which you can read here.
Image Credit: MonkeBlog