Can anyone recommend an easy to use sitemap generator that's free?
Also, do you have any tips on how to generate sitemaps for addon domains, of which I have quite a few? The answer to this might become apparent once I have a generator. But I'm in over my head here, so I figured I'd ask.
You can use Google's open-source code project: http://code.google.com/p/googlesitemapgenerator/
You can also use XML-Sitemaps which is quite effective: http://www.xml-sitemaps.com/
Add-on domains are considered different from primary domain and should have completely exclusive robots.txt and sitemaps altogether.
To clarify your doubt, if you run your main site through the sitemap generator, it will only generate a sitemap for that. For example, if you have www.crellin.com and www.sound.crellin.com or www.crellin1.com which is an add-on domain of crellin.com, generating a sitemap for crellin.com will not generate any associated sitemaps for crellin1 or sound.crellin.com. You have to do this separately and also have an exclusive robots.txt placed in the root directory of these associated domains.
Very good! Thanks especially for the part about addons.
How about parked domains? Do they just tag along with the domain on which they're parked? Or is a sitemap for each possible?
I can't for the life of me see how to generate a sitemap for a parked domain. But maybe there is a way.