sitemap generation

[junkyard]

The cart's default sitemap ( index.php?rt=content/sitemap ) is human friendly but is not robots friendly; and there is no XML shadow created in the document root. XML sitemap page is usually created for search engines like Google using Sitemap Protocol 0.9 are therefore compatible with other search engines that adopt the standards of www.sitemaps.org .
There are quite a few sitemap generators online: http://code.google.com/p/sitemap-generators/wiki/SitemapGenerators but that requires some manual work as well as decision making.  What we suggest is to embed this functionality in the cart by default, like some others did: 
http://addons.oscommerce.com/info/3226
https://drupal.org/project/xmlsitemap
Or maybe facilitate it for the users in some other way, like in the documentation.  Thanks!

[abantecart]

Great point. We will address this.

[eCommerce Core]

There is an extension "Google Sitemap" available.

[abantecart]

Good point. Google Sitemap extension will work for other search engines as well.

[junkyard]

Thanks much for the info!   Have totally missed this extension due to the lack of extensions Search.  Do you know if there are any advantages to using this tool compared to free online generators like www.web-site-map.com/xml-sitemap.jpg or www.xml-sitemaps.com ?

[abantecart]

Not sure. Probably it does something similar.

Regarding search. I agree search for extensions is needed. We are in the process of developing new marketplace. Will be available in 2014.