See my blog on make money blogging
Yahoo asks for site feed instead of sitemap to submit your blog. To index your blog quickly on Yahoo search engine, you need to add your blog feed on your 'My Yahoo' page. MSN is the third in the row after Google and Yahoo. MSN is easiest of all; submit your blog directly. Submission of blog on MSN is a manual process in which you are required to enter the characters on the page for successful submission.