This week, we also enable several features to get better SEO: Sitemap & Site Verification
http://yourblog.com/robots.txt now will display your sitemap url. And the sitemap will be updated every 12 hours.
Support Google Webmaster Tool
If you want to install Google Webmaster to diagnose you blog, we also provide google site verification.
This option is at
Your Blog >> Setting
If you hit any problems, please don't hesitate to tell us.