You can set a link to your sitemap on the index page, this way it will be picked up by robots. I also like to use a sitemap on my largest site for humans to follow - the link to this is in my menu. I use the ROR sitemap for robots, and for an example of a 'human' sitemap see http://www.limebrook.com/sitemap.html

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Trish

www.limebrook.com
for horse lovers and riders everywhere
www.webmasterproductions.co.uk
advice for novice website designers
www.mountainwalk.co.uk
serious walks for novice walkers
www.mybeardeddragons.co.uk
for novice bearded dragon owners
www.tucsonforbeginners.com
information for a short break in Tucson
www.pets4kids.info
advice if you're thnking of a pet for the family