The Importance of Sitemaps

Sept 16th: one day after public launch 10%<p>October 11th: less than one month after public launch 50%<p>Ermmm surely one day after public launch, most traffic was coming from blogs, news sites, and other "launch hype", which explains the low % from websites. I don't think you can conclude anything else from those figures.

Sitemaps only help the googlebot understand the link structure and contents of your site. It doesn't actually do any of the crawling or directly help indexing. It indirectly helps by telling the bot more about your site.<p>Atleast this is from all that I've ever read about SEO and indexing, but always curious to hear from experts.