### Trackback

To make a trackback, click on the Ping blogs link. You will not see this link if your entry's status is not published.

URLs to ping
  Paste here the trackback URLs you found in the posts you want to ping.
Send excerpt
  This field defaults to your entry's first few sentences. That's wht will be sent to the blog you're pinging, along with a link to your post. You can modify the excerpt by editing this field.
Auto discover ping URLs
  If your entries links specific posts and if the blog carrying those posts is set to allow it, this tool will find the URLs to ping for you.