Ubuntu repositories generator

For those of you who use, witch I recommend, Ubuntu, I've just found what could be a very handy tool, a sources.list generator. For those of you who don't know what the sources.list is, it's the list of repositories to be used by ubuntu software manager, in order to update and install software. This generator will give you, according to our selections, the appropriated sources.list file. Once done, you should put the file in /etc/apt/ directory. For that, save the text in your home directory and just use the command sudo mv file /etc/apt/sources.list (this will erase the previous config). After that, just run synaptics or any other package manager and you'll notice some speed improvements, and the whole new available packages for you to try. Give it a try!