Do I need to resubmit a new sitemap for new content?

[BitShift]

I have submitted a google sitemap for most of my key pages. However, Im wondering if it would help to resubmit a sitemap to include any new content/page that is created on the site. Comments?

[IanCP]

1. I'd include all pages
2. New pages? Update sitemap.xml
3. Resubmit if you want. I do, just to make sure there are no glitches [I've made them]

[BitShift]

What if your page count gets up into the hundreds? Is there a limit?

[dailypress]

if you have the sitemap updated automatically even better!

[Dr_SEO]

try xml sitemap generator.. i use it, works great.. my site is over 600 pages long and grows every day!

[Cyclob]

Google allow to have 50,000 URLs in one xml sitemap. If you have more, just break into another sitemap and list them under one sitemapindex.

Include your new pages in the existing Sitemap, and re-submit is the best way to go every time when you have new pages.

[neostar]

What is prefered to generate sitembp.wml? A thirpary app or own script? Thanks

[tangor]

xhtml (and pretty sure I'll get slapped if I misremember) is all you need.