How to blog An online exploration
There is no need to submit the sitemap more than once but it is best to keep it updated for google. MSN and Yahoo are also good search engines to submit your blog to. Use a blog like Wordpress if you want one that has an easy sitemap plugin. An automatic update will be done when your site is changed. You can use googles free sitemap tools to create your sitemap if you are not using blogging software otherwise.