Submitting alternative pages is only insurance. In case the search engine has trouble reaching one of the pages, you've covered yourself by giving it another page from which to begin its crawl of your site. Some search engines have an instant spidering service, as described in the Search Engine Features page. In this cases, you should submit all the key pages from your web site, not just the top two or three. Search Engine Features page has the current times it takes for each search engine to add new web pages.
Extended information is also available to site subscribers.
Verify And Maintain Your Listing Check on your pages and ensure they get listed, in the ways described on the Check URL page. Once your pages are listed in a search engine, monitor your listing every week or two. Strange things happen. Pages disappear from catalogs. Links go screwy.