WordPress.com users who want to make the move to a self-hosted WordPress installation can now do so without worrying about losing readers in the process.
WordPress.com is now offering an Offsite Redirect upgrade for $12 per year. The upgrade will use a 301 redirect to forward readers to a specified domain and map the WordPress.com URLs to that domain. This means no broken links and no issues with SEO.
You can learn more about the Offsite Redirect upgrade here.