@C_RebeccaMar 23.2012 — #Pinging is important to accelerate the fresh spider crawling, so that SEs rank your pages, accordingly, for the updated content. It’s like alerting search engine, “Hey, I’ve added something new, come and take a look.”
@iPhoneappsMar 26.2012 — #Also pinging will help in indexing your post or webpage quickly otherwise it might took some time for crawlers to index that corresponding page .
@paullopezMar 26.2012 — #It is not necessary to ping website or blog after each update. However, it is helpful if your blog posts are not getting indexed in search engines.
@spiderswatchApr 11.2012 — #Pinging refers to :- When you ping your site then search engines gets a notification that your site has been updated and the site should be crawled.
@deepakgMay 09.2012 — #Pinging is basically method of knocking the SE to crawl the newly updated content at any website.So if there is any update to your website then it will tells the SE to crawl that fresh content.