I was surprised to find this paragraph in Yahoo's Submit Your Site page yesterday. I got a hint about it from a reply posted at http://groups.google.com/group/google-sitemaps

I have been to the page many times in the past but I don't remember seeing it before. Is it something recent?

__________________
J de Silva
Learning Journal | GIDForums™ | GIDNetwork™ | GIDWebhosts™ | GIDSearch™

But if you read the top part, it also says - "Enter only the top-level page in your site, our crawler will explore the rest of your site from there."

That would lead me to assume that the urllist.txt file could be a list of websites you want crawled (not necessarily a list of webpages within a single site).

__________________
Web Hosting Tips | Career Advice

The most important question for me was: "Will they (Yahoo) be fetching this (sitemap) file again soon?" Well, I got that answer earlier today; they fetched the (GIDNetwork™) sitemap file again!

So we can assume "Yahoo Sitemaps" works the same way Google Sitemap does.

Now to make one for GIDForums™...

__________________
Custom BB codes you can use here:
[HTML] | [C++] | [CSS] | [JAVA] | [PY] | [VB]

I just checked my logs for yesterday (Saturday) and can confirm that Yahoo has picked up the sitemap file for GIDForums™ yet again.

It appears to fetch the file weekly at least... it could be more frequent than that but I cannot be certain as I don't go through the logs everyday.

__________________
Custom BB codes you can use here:
[HTML] | [C++] | [CSS] | [JAVA] | [PY] | [VB]