Why is there no sitemap.xml for SEOmoz?

[schof]

I noticed that SEOmoz does not have a "root" sitemap called sitemap.xml.  On the other hand, there do appear to be sitemaps for various sections of the such as http://www.seomoz.org/blog-sitemap.xml

I was planning on having a root level sitemap that referenced difference sections of my site (blog, support, etc.) but I'm a little concerned that this site itself doesn't seem to be following that practice.

Presumably this website is submitting the individual section maps to Google directly since they aren't linkable through sitemap.xml?

[AgentsofValue]

It looks like SEOMoz is using their robots.txt file to specify their sitemaps:

http://support.google.com/webmasters/bin/answer.py?hl=en&answer=183669

You can probably do something similar:

http://www.seomoz.org/robots.txt

[Anita_Clark]

I had a template site and was not able to put any files on the root...going the robots.txt route worked just fine for me.

[schof]

Yes that certainly explains it.  Thanks for pointing this out.