The Add your blog to our listings? setting determines whether or not your blog will be linked to from Blogger.com -- more specifically, the Blogger homepage, Blogger Play, and Next Blog. If you select 'No,' your blog won't appear in these places, but it will still be available on the Internet. This blog will still be displayed on your profile unless you hide it by deselecting the relevant checkbox on the Set Displayed Blog page. The Let search engines find your blog? setting determines whether or not your blog will be included in Google Blog Search and if it will ping Weblogs.com. If you select 'No,' everyone can still view your blog but search engines will be instructed not to crawl it. You can find these settings on the Settings | Basic page.
