I started off my XML sitemap by selecting "last Modified" "None" and added it to Google Webmaster tools...
I've now changed it to "Use This Date and Time" - As I just did a lot of updates on my site.
Will my third choice of "Use Server's Response" be better!? (Does that mean everytime I edit my site, it will be updated automatically so I don't have to keep re-submitting my sitemap?)
I don't understand the difference.
Does it matter how often GoogleBot will visit my site as to which option I select?
I havnen't been visited for several days and old pages still haven't been indexed, let alone my massive updates and changes!!
Thanks in advance.