The XML Sitemap is the ideal choice because it allows you to specify a lot of information about the content of your site. But, say for some reason that you can't install an XML Sitemap. Maybe there's a conflict with another module that you just have to have. Perhaps your server doesn't have the power to handle the large overhead that an XML sitemap needs for large sites. Or, possibly you want to submit a sitemap to a search engine that doesn't support XML yet.
Well, there is an alternative. It's not as robust but it is a functional, albeit rudimentary, solution. Just make a list of every URL in your site and put the list in one big text document with one URL on each line. Too much work, you say? Good thing there is a Drupal module that does all the work for you. It's called the URL list module. It's maintained by David K. Norman. Thank you, David!
1. Download the Sitemap module from http://drupal.org/project/urllist and install it just like a normal Drupal...
