Read about my passion for skinny website
Sitemap is not a hindrance to submit your blog on Google Webmasters. Google gives importance to blog directories to pull results, so submit your blog on these directories first, and do not forget to ping your blog when you update it. There are many websites which offer you this service, but Feed Shot is the most powerful website which submits your blog on main blog directories. Yahoo adopts different way to submit a blog. Yahoo asks for site feed instead of sitemap to submit your blog.