This site has a few tools but the sitemap submitter is exactly what you want and easy to use. You can submitt to the main serach engines with no registration.

• Online Sitemap Generator - Create XML sitemap for your website to be submit in several search engine like google in minutes
• Submit Sitemap - Free and easy tools to directly notify search engine about your new or updated sitemap file.
• Spider View - Tools that help you to know what spider bot see in your website. spider bot is the one that crawl your contents.
• Domain Statistics - Tools that help you to know information about your domain, domain age, domain ip address, domain backlink from several search engine.
• Domain Who Is - Tools that help you to check who is the owner of the domain, dns of domain, contact person of domain.
• Keyword Density - Tools that help you to measure keyword in your website. how many keyword that appears in your website.
• Robots Generator - This tools help you to control bots when they come to your website, wheater you want to block them or allow them.
• Check Page Rank - Tools that help you to check your website google page rank, PageRank is a numeric value that represents how important a page is on the web.
• Check Backlink - Tools that enables you to know the number of websites who have given a link to your website or webpage.
• Check IP Address - Tools that tell you about your IP Address and also get Free IP Address Widget for your website