This web page allows a user to generate a sources.lst file for an Ubuntu distribution. repogen.simplylinux.ch is a site that allows you to recreate your sources.lst if it is deleted accidentally. This would be very useful for a person that needs this kind of service in a hurry. So, check this site out and see if it works for you. There are the usual repositories to choose from, as well as a large number of custom repos. Just tick the box to add any repository you wish. Very good for setting up a custom Ubuntu distribution. Just save the new sources.lst and type sudo apt-get update.
