You will probably receive more traffic from search engines when you submit sitemaps, that is, xml files that contain lists of your sites' pages. In fact you can add sitemap creation modules to both the Wordpress blogging platform and the Drupal community platform (the modules will create your sitemaps for you). To add your sitemaps to Windows Live (Microsoft) go to webmaster.live.com. For Yahoo, go to siteexplorer.search.yahoo.com. And to submit your sitemaps to Google, see www.google.com/webmasters/tools/. If you host your sites with GoDaddy, your hosting account contains a sitemap creation tool that will probably work alright for small web sites.