Google provides a simple sitemap generator http://www.google.com/webmasters/sitemaps/docs/en/sitemap-generator.html
if you don't know how dynamically generate your sitemap, this tool is pretty good for small sites http://www.blocklayer.com/googlesitemap/
http://www.auditmypc.com/free-sitemap-generator.asp That's also a very good one with exclusion wildcards and very fast
I use `ls *.shtml` and then I use `sed` to add my base URL to the front of every line. That's my sitemap.
and there is a good tool for vBulletin if you use a big cms like Mambo, drupal, nuke etc then visit their community sites as there will be a generator. If your site is unique to you then the suggestions above should do the trick. Sarah
You're asking people who have already committed to having them. Wether they help in the long run will remain to be seen but there are good reasons to take the time to put them in. Especially if you use a CMS and it's quick and easy.