However, I’ve found out that SEO’s recommend NOT to use the “Add URL” form with Google.
The location is at:
SEO’s believe that using that form to let Google know about your site will actually hurt your PR and, at the same time, make Google rank you lower. In other words, you absolutely never want to use that form, or the similar form on any other search engine, to promote your website.
By extension, that also means that you absolutely never use any automated “website submission software,” either. Those are the things that claim they’ll submit you to some incredible number of search engines with a single click.
Adding to Google
My experience is that getting backlinks to your site from already Google indexed sites is enough. Also by placing Adsense on your pages, you’ll be getting Google spiders and finally submitting your sitemap to Google Webmasters will also allow Google spiders to crawl your pages.