You're pages need authority. If you have lots of content and add new content but no authority, then having sitemaps won't result in indexing or even crawlingI've never done that ...
Update your XML sitemap and make sure your new content is accessile when browsing your site. That's usually enough to get the new content indexed.
Without net-linking/authority you can't do muchYou're pages need authority
i have pinging plugins( ping for new content and pinging for new sitemap) on few my cms and thats working.Helloevery one
Pinging the Search engines regularly is good or not from SEO point of view. Which methods is used for pinging the SEs?
Well my main site has a PR of 4 at the moment and it is currently being deep spidered by Google at the rate or approximately a page a second (1.3M pages in February and around 500K pages already in March). Yahoo and Microsoft seem a bit slow on the uptake as usual. It is not really an ordinary site though so I guess there are exceptions to every rule.You're pages need authority. If you have lots of content and add new content but no authority, then having sitemaps won't result in indexing or even crawling