When sending a new or edited post to your weblog, MarsEdit can send “pings” to sites such as technorati.com, and newsgator.com.
What are pings? A ping is a message from MarsEdit that informs an indexing service that your weblog has updated. Some services have a list of the most-recently-updated weblogs, or maintain a searchable index of weblog content.
Many weblog systems have built-in support for pings, so it may not be necessary to use MarsEdit's ping functionality.
You can add a URL by clicking the + button below the list. The URL you specify must conform to the Weblogs.com XML-RPC Interface for pinging services.